131503015 has 24 divisors (see below), whose sum is σ = 184187520. Its totient is φ = 89869248.

The previous prime is 131502991. The next prime is 131503027. The reversal of 131503015 is 510305131.

It is not a de Polignac number, because 131503015 - 2¹⁵ = 131470247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131502983 and 131503001.

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 23 ways as a sum of consecutive naturals, for example, 90666 + ... + 92104.

It is an arithmetic number, because the mean of its divisors is an integer number (7674480).

Almost surely, 2^131503015 is an apocalyptic number.

131503015 is a deficient number, since it is larger than the sum of its proper divisors (52684505).

131503015 is a wasteful number, since it uses less digits than its factorization.

131503015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 131503015 is about 11467.4764006733. The cubic root of 131503015 is about 508.5245256498.

Adding to 131503015 its reverse (510305131), we get a palindrome (641808146).

The spelling of 131503015 in words is "one hundred thirty-one million, five hundred three thousand, fifteen".