316391725 has 24 divisors (see below), whose sum is σ = 423584000. Its totient is φ = 233046720.

The previous prime is 316391723. The next prime is 316391737. The reversal of 316391725 is 527193613.

It is not a de Polignac number, because 316391725 - 2¹ = 316391723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316391723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157276 + ... + 159274.

Almost surely, 2^316391725 is an apocalyptic number.

It is an amenable number.

316391725 is a deficient number, since it is larger than the sum of its proper divisors (107192275).

316391725 is a wasteful number, since it uses less digits than its factorization.

316391725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509 (or 2504 counting only the distinct ones).

The product of its digits is 34020, while the sum is 37.

The square root of 316391725 is about 17787.4035485790. The cubic root of 316391725 is about 681.4097950210.

The spelling of 316391725 in words is "three hundred sixteen million, three hundred ninety-one thousand, seven hundred twenty-five".