316263521 has 16 divisors (see below), whose sum is σ = 368740224. Its totient is φ = 265659264.

The previous prime is 316263499. The next prime is 316263527. The reversal of 316263521 is 125362613.

It is not a de Polignac number, because 316263521 - 2¹⁴ = 316247137 is a prime.

It is a super-2 number, since 2×316263521² = 200045229430634882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316263527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81395 + ... + 85191.

It is an arithmetic number, because the mean of its divisors is an integer number (23046264).

Almost surely, 2^316263521 is an apocalyptic number.

It is an amenable number.

316263521 is a deficient number, since it is larger than the sum of its proper divisors (52476703).

316263521 is a wasteful number, since it uses less digits than its factorization.

316263521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040.

The product of its digits is 6480, while the sum is 29.

The square root of 316263521 is about 17783.7993972042. The cubic root of 316263521 is about 681.3177453490.

The spelling of 316263521 in words is "three hundred sixteen million, two hundred sixty-three thousand, five hundred twenty-one".