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3141925 = 521091153
BaseRepresentation
bin1011111111000100100101
312220121220121
423333010211
51301020200
6151201541
735464063
oct13770445
95817817
103141925
111856636
1210762b1
13860137
145bb033
15420e1a
hex2ff125

3141925 has 12 divisors (see below), whose sum is σ = 3935140. Its totient is φ = 2488320.

The previous prime is 3141913. The next prime is 3141937. The reversal of 3141925 is 5291413.

It is an interprime number because it is at equal distance from previous prime (3141913) and next prime (3141937).

It can be written as a sum of positive squares in 6 ways, for example, as 40804 + 3101121 = 202^2 + 1761^2 .

It is not a de Polignac number, because 3141925 - 213 = 3133733 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

3141925 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3141925.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2149 + ... + 3301.

Almost surely, 23141925 is an apocalyptic number.

It is an amenable number.

3141925 is a deficient number, since it is larger than the sum of its proper divisors (793215).

3141925 is a wasteful number, since it uses less digits than its factorization.

3141925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1267 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 3141925 is about 1772.5476016175. The cubic root of 3141925 is about 146.4643531716.

It can be divided in two parts, 314 and 1925, that multiplied together give a triangular number (604450 = T1099).

The spelling of 3141925 in words is "three million, one hundred forty-one thousand, nine hundred twenty-five".

Divisors: 1 5 25 109 545 1153 2725 5765 28825 125677 628385 3141925