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2125031 = 16313037
BaseRepresentation
bin1000000110110011100111
310222221222212
420012303213
51021000111
6113314035
724030266
oct10066347
93887885
102125031
111221627
1286591b
1359531c
143d45dd
152be98b
hex206ce7

2125031 has 4 divisors (see below), whose sum is σ = 2138232. Its totient is φ = 2111832.

The previous prime is 2125009. The next prime is 2125037. The reversal of 2125031 is 1305212.

It is a happy number.

2125031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2125031 - 210 = 2124007 is a prime.

It is a super-2 number, since 2×21250312 = 9031513501922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2124997 and 2125015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6356 + ... + 6681.

It is an arithmetic number, because the mean of its divisors is an integer number (534558).

22125031 is an apocalyptic number.

2125031 is a deficient number, since it is larger than the sum of its proper divisors (13201).

2125031 is a wasteful number, since it uses less digits than its factorization.

2125031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13200.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2125031 is about 1457.7486065848. The cubic root of 2125031 is about 128.5647047042.

It can be divided in two parts, 21 and 25031, that added together give a palindrome (25052).

The spelling of 2125031 in words is "two million, one hundred twenty-five thousand, thirty-one".

Divisors: 1 163 13037 2125031