315492481 has 8 divisors (see below), whose sum is σ = 320503040. Its totient is φ = 310490928.

The previous prime is 315492467. The next prime is 315492491. The reversal of 315492481 is 184294513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315492481 is a prime.

It is a super-2 number, since 2×315492481² = 199071011135070722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315492481.

It is not an unprimeable number, because it can be changed into a prime (315492491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116515 + ... + 119191.

It is an arithmetic number, because the mean of its divisors is an integer number (40062880).

Almost surely, 2^315492481 is an apocalyptic number.

It is an amenable number.

315492481 is a deficient number, since it is larger than the sum of its proper divisors (5010559).

315492481 is a wasteful number, since it uses less digits than its factorization.

315492481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503.

The product of its digits is 34560, while the sum is 37.

The square root of 315492481 is about 17762.1080111568. The cubic root of 315492481 is about 680.7636180832.

The spelling of 315492481 in words is "three hundred fifteen million, four hundred ninety-two thousand, four hundred eighty-one".