315231056 has 20 divisors (see below), whose sum is σ = 698011872. Its totient is φ = 135098976.

The previous prime is 315231053. The next prime is 315231061. The reversal of 315231056 is 650132513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315231053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407170 + ... + 1407393.

Almost surely, 2^315231056 is an apocalyptic number.

It is an amenable number.

315231056 is an abundant number, since it is smaller than the sum of its proper divisors (382780816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315231056 is a wasteful number, since it uses less digits than its factorization.

315231056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814578 (or 2814572 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 315231056 is about 17754.7474214645. The cubic root of 315231056 is about 680.5755335079.

Adding to 315231056 its reverse (650132513), we get a palindrome (965363569).

The spelling of 315231056 in words is "three hundred fifteen million, two hundred thirty-one thousand, fifty-six".