3931525 has 12 divisors (see below), whose sum is σ = 5250532. Its totient is φ = 2903040.

The previous prime is 3931523. The next prime is 3931541. The reversal of 3931525 is 5251393.

It can be written as a sum of positive squares in 6 ways, for example, as 1425636 + 2505889 = 1194^2 + 1583^2 .

It is not a de Polignac number, because 3931525 - 2¹ = 3931523 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3931493 and 3931502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3931523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5724 + ... + 6373.

Almost surely, 2^3931525 is an apocalyptic number.

It is an amenable number.

3931525 is a deficient number, since it is larger than the sum of its proper divisors (1319007).

3931525 is a wasteful number, since it uses less digits than its factorization.

3931525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120 (or 12115 counting only the distinct ones).

The product of its digits is 4050, while the sum is 28.

The square root of 3931525 is about 1982.8073532242. The cubic root of 3931525 is about 157.8290759637.

It can be divided in two parts, 39315 and 25, that added together give a triangular number (39340 = T₂₈₀).

The spelling of 3931525 in words is "three million, nine hundred thirty-one thousand, five hundred twenty-five".