315352231 has 4 divisors (see below), whose sum is σ = 315483552. Its totient is φ = 315220912.

The previous prime is 315352229. The next prime is 315352267. The reversal of 315352231 is 132253513.

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 315352231 - 2¹ = 315352229 is a prime.

It is a super-2 number, since 2×315352231² = 198894059193354722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315352196 and 315352205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315352201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61990 + ... + 66883.

It is an arithmetic number, because the mean of its divisors is an integer number (78870888).

Almost surely, 2^315352231 is an apocalyptic number.

315352231 is a deficient number, since it is larger than the sum of its proper divisors (131321).

315352231 is a wasteful number, since it uses less digits than its factorization.

315352231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131320.

The product of its digits is 2700, while the sum is 25.

The square root of 315352231 is about 17758.1595611707. The cubic root of 315352231 is about 680.6627268792.

The spelling of 315352231 in words is "three hundred fifteen million, three hundred fifty-two thousand, two hundred thirty-one".