315363251 has 4 divisors (see below), whose sum is σ = 360415152. Its totient is φ = 270311352.

The previous prime is 315363241. The next prime is 315363263. The reversal of 315363251 is 152363513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152363513 = 863 ⋅176551.

It is a cyclic number.

It is not a de Polignac number, because 315363251 - 2¹⁸ = 315101107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315363221) 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, 22525940 + ... + 22525953.

It is an arithmetic number, because the mean of its divisors is an integer number (90103788).

Almost surely, 2^315363251 is an apocalyptic number.

315363251 is a deficient number, since it is larger than the sum of its proper divisors (45051901).

315363251 is an equidigital number, since it uses as much as digits as its factorization.

315363251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45051900.

The product of its digits is 8100, while the sum is 29.

The square root of 315363251 is about 17758.4698383616. The cubic root of 315363251 is about 680.6706553849.

The spelling of 315363251 in words is "three hundred fifteen million, three hundred sixty-three thousand, two hundred fifty-one".