3143925 has 36 divisors (see below), whose sum is σ = 5730660. Its totient is φ = 1647360.

The previous prime is 3143897. The next prime is 3143953. The reversal of 3143925 is 5293413.

It is an interprime number because it is at equal distance from previous prime (3143897) and next prime (3143953).

It can be written as a sum of positive squares in 6 ways, for example, as 509796 + 2634129 = 714^2 + 1623^2 .

It is not a de Polignac number, because 3143925 - 2¹⁰ = 3142901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19947 + ... + 20103.

It is an arithmetic number, because the mean of its divisors is an integer number (159185).

Almost surely, 2^3143925 is an apocalyptic number.

It is an amenable number.

3143925 is a deficient number, since it is larger than the sum of its proper divisors (2586735).

3143925 is a wasteful number, since it uses less digits than its factorization.

3143925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 254 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 3143925 is about 1773.1116716101. Note that the first 3 decimals coincide. The cubic root of 3143925 is about 146.4954239932.

It can be divided in two parts, 31 and 43925, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 3143925 in words is "three million, one hundred forty-three thousand, nine hundred twenty-five".