316825531 has 4 divisors (see below), whose sum is σ = 345627864. Its totient is φ = 288023200.

The previous prime is 316825517. The next prime is 316825577. The reversal of 316825531 is 135528613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135528613 = 11 ⋅12320783.

It is a cyclic number.

It is not a de Polignac number, because 316825531 - 2¹⁷ = 316694459 is a prime.

It is a super-2 number, since 2×316825531² = 200756834186863922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316825031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14401150 + ... + 14401171.

It is an arithmetic number, because the mean of its divisors is an integer number (86406966).

Almost surely, 2^316825531 is an apocalyptic number.

316825531 is a deficient number, since it is larger than the sum of its proper divisors (28802333).

316825531 is a wasteful number, since it uses less digits than its factorization.

316825531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28802332.

The product of its digits is 21600, while the sum is 34.

The square root of 316825531 is about 17799.5935627755. The cubic root of 316825531 is about 681.7210807234.

The spelling of 316825531 in words is "three hundred sixteen million, eight hundred twenty-five thousand, five hundred thirty-one".