315431105 has 16 divisors (see below), whose sum is σ = 424090944. Its totient is φ = 223202880.

The previous prime is 315431089. The next prime is 315431111. The reversal of 315431105 is 501134513.

It is not a de Polignac number, because 315431105 - 2⁴ = 315431089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75467 + ... + 79536.

It is an arithmetic number, because the mean of its divisors is an integer number (26505684).

Almost surely, 2^315431105 is an apocalyptic number.

It is an amenable number.

315431105 is a deficient number, since it is larger than the sum of its proper divisors (108659839).

315431105 is a wasteful number, since it uses less digits than its factorization.

315431105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155056.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 315431105 is about 17760.3802042636. The cubic root of 315431105 is about 680.7194699021.

Adding to 315431105 its reverse (501134513), we get a palindrome (816565618).

The spelling of 315431105 in words is "three hundred fifteen million, four hundred thirty-one thousand, one hundred five".