131315315 has 8 divisors (see below), whose sum is σ = 157642848. Its totient is φ = 105009280.

The previous prime is 131315311. The next prime is 131315323. The reversal of 131315315 is 513513131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131315315 - 2² = 131315311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131315311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15314 + ... + 22296.

It is an arithmetic number, because the mean of its divisors is an integer number (19705356).

Almost surely, 2^131315315 is an apocalyptic number.

131315315 is a deficient number, since it is larger than the sum of its proper divisors (26327533).

131315315 is an equidigital number, since it uses as much as digits as its factorization.

131315315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10749.

The product of its digits is 675, while the sum is 23.

The square root of 131315315 is about 11459.2894631386. The cubic root of 131315315 is about 508.2824640189.

Adding to 131315315 its reverse (513513131), we get a palindrome (644828446).

The spelling of 131315315 in words is "one hundred thirty-one million, three hundred fifteen thousand, three hundred fifteen".