315924047 has 2 divisors, whose sum is σ = 315924048. Its totient is φ = 315924046.

The previous prime is 315924023. The next prime is 315924079. The reversal of 315924047 is 740429513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315924047 - 2¹² = 315919951 is a prime.

It is a super-3 number, since 3×315924047³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315923998 and 315924016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315924017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157962023 + 157962024.

It is an arithmetic number, because the mean of its divisors is an integer number (157962024).

Almost surely, 2^315924047 is an apocalyptic number.

315924047 is a deficient number, since it is larger than the sum of its proper divisors (1).

315924047 is an equidigital number, since it uses as much as digits as its factorization.

315924047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 315924047 is about 17774.2523612106. The cubic root of 315924047 is about 681.0738849299.

The spelling of 315924047 in words is "three hundred fifteen million, nine hundred twenty-four thousand, forty-seven".