131120015 has 16 divisors (see below), whose sum is σ = 170100000. Its totient is φ = 96454272.

The previous prime is 131119979. The next prime is 131120021. The reversal of 131120015 is 510021131.

It is a cyclic number.

It is not a de Polignac number, because 131120015 - 2¹⁴ = 131103631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13736 + ... + 21234.

It is an arithmetic number, because the mean of its divisors is an integer number (10631250).

Almost surely, 2^131120015 is an apocalyptic number.

131120015 is a deficient number, since it is larger than the sum of its proper divisors (38979985).

131120015 is a wasteful number, since it uses less digits than its factorization.

131120015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 131120015 is about 11450.7648216178. The cubic root of 131120015 is about 508.0303562884.

Adding to 131120015 its reverse (510021131), we get a palindrome (641141146).

The spelling of 131120015 in words is "one hundred thirty-one million, one hundred twenty thousand, fifteen".