131503799 has 8 divisors (see below), whose sum is σ = 153357600. Its totient is φ = 112717248.

The previous prime is 131503783. The next prime is 131503837. The reversal of 131503799 is 997305131.

It is not a de Polignac number, because 131503799 - 2⁴ = 131503783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131508799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191354 + ... + 192039.

It is an arithmetic number, because the mean of its divisors is an integer number (19169700).

Almost surely, 2^131503799 is an apocalyptic number.

131503799 is a deficient number, since it is larger than the sum of its proper divisors (21853801).

131503799 is an frugal number, since it uses more digits than its factorization.

131503799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383414 (or 383400 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 131503799 is about 11467.5105842550. The cubic root of 131503799 is about 508.5255362285.

The spelling of 131503799 in words is "one hundred thirty-one million, five hundred three thousand, seven hundred ninety-nine".