131000515 has 8 divisors (see below), whose sum is σ = 160545600. Its totient is φ = 102570432.

The previous prime is 131000509. The next prime is 131000531. The reversal of 131000515 is 515000131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131000515 is a prime.

It is a super-2 number, since 2×131000515² = 34322269860530450, which contains 22 as substring.

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, 278490 + ... + 278959.

It is an arithmetic number, because the mean of its divisors is an integer number (20068200).

Almost surely, 2^131000515 is an apocalyptic number.

131000515 is a deficient number, since it is larger than the sum of its proper divisors (29545085).

131000515 is an equidigital number, since it uses as much as digits as its factorization.

131000515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557501.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 131000515 is about 11445.5456401169. The cubic root of 131000515 is about 507.8759733487.

Adding to 131000515 its reverse (515000131), we get a palindrome (646000646).

The spelling of 131000515 in words is "one hundred thirty-one million, five hundred fifteen", and thus it is an aban number.