131237315 has 8 divisors (see below), whose sum is σ = 171801648. Its totient is φ = 95445280.

The previous prime is 131237303. The next prime is 131237321. The reversal of 131237315 is 513732131.

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

It is a de Polignac number, because none of the positive numbers 2^k-131237315 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193012 + ... + 1193121.

It is an arithmetic number, because the mean of its divisors is an integer number (21475206).

Almost surely, 2^131237315 is an apocalyptic number.

131237315 is a deficient number, since it is larger than the sum of its proper divisors (40564333).

131237315 is a wasteful number, since it uses less digits than its factorization.

131237315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386149.

The product of its digits is 1890, while the sum is 26.

The square root of 131237315 is about 11455.8856052249. The cubic root of 131237315 is about 508.1818058320.

Adding to 131237315 its reverse (513732131), we get a palindrome (644969446).

The spelling of 131237315 in words is "one hundred thirty-one million, two hundred thirty-seven thousand, three hundred fifteen".