131164015 has 4 divisors (see below), whose sum is σ = 157396824. Its totient is φ = 104931208.

The previous prime is 131163997. The next prime is 131164037. The reversal of 131164015 is 510461131.

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 131164015 - 2²¹ = 129066863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13116397 + ... + 13116406.

It is an arithmetic number, because the mean of its divisors is an integer number (39349206).

Almost surely, 2^131164015 is an apocalyptic number.

131164015 is a deficient number, since it is larger than the sum of its proper divisors (26232809).

131164015 is an equidigital number, since it uses as much as digits as its factorization.

131164015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26232808.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 131164015 is about 11452.6859295102. The cubic root of 131164015 is about 508.0871765884.

The spelling of 131164015 in words is "one hundred thirty-one million, one hundred sixty-four thousand, fifteen".