131430015 has 24 divisors (see below), whose sum is σ = 228365280. Its totient is φ = 69925824.

The previous prime is 131430007. The next prime is 131430041. The reversal of 131430015 is 510034131.

It is not a de Polignac number, because 131430015 - 2³ = 131430007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131430015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16429 + ... + 23081.

It is an arithmetic number, because the mean of its divisors is an integer number (9515220).

Almost surely, 2^131430015 is an apocalyptic number.

131430015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131430015 is a deficient number, since it is larger than the sum of its proper divisors (96935265).

131430015 is a wasteful number, since it uses less digits than its factorization.

131430015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7103 (or 7100 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 131430015 is about 11464.2930440564. The cubic root of 131430015 is about 508.4304107947.

Adding to 131430015 its reverse (510034131), we get a palindrome (641464146).

It can be divided in two parts, 1314 and 30015, that added together give a square (31329 = 177²).

The spelling of 131430015 in words is "one hundred thirty-one million, four hundred thirty thousand, fifteen".