315397923 has 8 divisors (see below), whose sum is σ = 445267728. Its totient is φ = 197896704.

The previous prime is 315397921. The next prime is 315397969. The reversal of 315397923 is 329793513.

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

It is not a de Polignac number, because 315397923 - 2¹ = 315397921 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (315397921) 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, 3092086 + ... + 3092187.

It is an arithmetic number, because the mean of its divisors is an integer number (55658466).

Almost surely, 2^315397923 is an apocalyptic number.

315397923 is a deficient number, since it is larger than the sum of its proper divisors (129869805).

315397923 is a wasteful number, since it uses less digits than its factorization.

315397923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184293.

The product of its digits is 153090, while the sum is 42.

The square root of 315397923 is about 17759.4460217654. The cubic root of 315397923 is about 680.6955994751.

The spelling of 315397923 in words is "three hundred fifteen million, three hundred ninety-seven thousand, nine hundred twenty-three".