315025427 has 4 divisors (see below), whose sum is σ = 322709016. Its totient is φ = 307341840.

The previous prime is 315025393. The next prime is 315025429. The reversal of 315025427 is 724520513.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315025427 - 2⁸ = 315025171 is a prime.

It is a super-3 number, since 3×315025427³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315025427.

It is not an unprimeable number, because it can be changed into a prime (315025429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3841733 + ... + 3841814.

It is an arithmetic number, because the mean of its divisors is an integer number (80677254).

Almost surely, 2^315025427 is an apocalyptic number.

315025427 is a deficient number, since it is larger than the sum of its proper divisors (7683589).

315025427 is an equidigital number, since it uses as much as digits as its factorization.

315025427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7683588.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 315025427 is about 17748.9556594184. The cubic root of 315025427 is about 680.4275187906.

The spelling of 315025427 in words is "three hundred fifteen million, twenty-five thousand, four hundred twenty-seven".