315730023 has 16 divisors (see below), whose sum is σ = 485373696. Its totient is φ = 178819200.

The previous prime is 315729949. The next prime is 315730031. The reversal of 315730023 is 320037513.

It is not a de Polignac number, because 315730023 - 2⁹ = 315729511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315729975 and 315730002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315730073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64153 + ... + 68898.

It is an arithmetic number, because the mean of its divisors is an integer number (30335856).

Almost surely, 2^315730023 is an apocalyptic number.

315730023 is a deficient number, since it is larger than the sum of its proper divisors (169643673).

315730023 is a wasteful number, since it uses less digits than its factorization.

315730023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133174.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 315730023 is about 17768.7935155992. The cubic root of 315730023 is about 680.9344297433.

Adding to 315730023 its reverse (320037513), we get a palindrome (635767536).

The spelling of 315730023 in words is "three hundred fifteen million, seven hundred thirty thousand, twenty-three".