315431055 has 24 divisors (see below), whose sum is σ = 550241952. Its totient is φ = 167154624.

The previous prime is 315431023. The next prime is 315431059. The reversal of 315431055 is 550134513.

It is not a de Polignac number, because 315431055 - 2⁵ = 315431023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315431059) 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, 15259 + ... + 29388.

It is an arithmetic number, because the mean of its divisors is an integer number (22926748).

Almost surely, 2^315431055 is an apocalyptic number.

315431055 is a deficient number, since it is larger than the sum of its proper divisors (234810897).

315431055 is a wasteful number, since it uses less digits than its factorization.

315431055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44815 (or 44812 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 315431055 is about 17760.3787966361. The cubic root of 315431055 is about 680.7194339344.

Adding to 315431055 its reverse (550134513), we get a palindrome (865565568).

The spelling of 315431055 in words is "three hundred fifteen million, four hundred thirty-one thousand, fifty-five".