131515840503 has 12 divisors (see below), whose sum is σ = 190931628888. Its totient is φ = 87232163760.

The previous prime is 131515840499. The next prime is 131515840553. The reversal of 131515840503 is 305048515131.

It is a happy number.

131515840503 is a `hidden beast` number, since 13 + 1 + 51 + 58 + 40 + 503 = 666.

It is not a de Polignac number, because 131515840503 - 2² = 131515840499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131515840553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37086733 + ... + 37090278.

It is an arithmetic number, because the mean of its divisors is an integer number (15910969074).

Almost surely, 2^131515840503 is an apocalyptic number.

131515840503 is a deficient number, since it is larger than the sum of its proper divisors (59415788385).

131515840503 is a wasteful number, since it uses less digits than its factorization.

131515840503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74177214 (or 74177211 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 131515840503 in words is "one hundred thirty-one billion, five hundred fifteen million, eight hundred forty thousand, five hundred three".