3158725 has 6 divisors (see below), whose sum is σ = 3916850. Its totient is φ = 2526960.

The previous prime is 3158717. The next prime is 3158759. The reversal of 3158725 is 5278513.

It can be written as a sum of positive squares in 3 ways, for example, as 986049 + 2172676 = 993^2 + 1474^2 .

It is not a de Polignac number, because 3158725 - 2³ = 3158717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63150 + ... + 63199.

Almost surely, 2^3158725 is an apocalyptic number.

It is an amenable number.

3158725 is a deficient number, since it is larger than the sum of its proper divisors (758125).

3158725 is a wasteful number, since it uses less digits than its factorization.

3158725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126359 (or 126354 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 3158725 is about 1777.2802255131. The cubic root of 3158725 is about 146.7249395394.

It can be divided in two parts, 3158 and 725, that added together give a palindrome (3883).

The spelling of 3158725 in words is "three million, one hundred fifty-eight thousand, seven hundred twenty-five".