131245015 has 48 divisors (see below), whose sum is σ = 190978560. Its totient is φ = 85690880.

The previous prime is 131245003. The next prime is 131245033. The reversal of 131245015 is 510542131.

It is a happy number.

It is not a de Polignac number, because 131245015 - 2⁵ = 131244983 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 47 ways as a sum of consecutive naturals, for example, 365406 + ... + 365764.

It is an arithmetic number, because the mean of its divisors is an integer number (3978720).

Almost surely, 2^131245015 is an apocalyptic number.

131245015 is a deficient number, since it is larger than the sum of its proper divisors (59733545).

131245015 is a wasteful number, since it uses less digits than its factorization.

131245015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 131245015 is about 11456.2216720872. The cubic root of 131245015 is about 508.1917443757.

Adding to 131245015 its reverse (510542131), we get a palindrome (641787146).

The spelling of 131245015 in words is "one hundred thirty-one million, two hundred forty-five thousand, fifteen".