131503960 has 32 divisors (see below), whose sum is σ = 338153760. Its totient is φ = 45086976.

The previous prime is 131503943. The next prime is 131503969. The reversal of 131503960 is 69305131.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131503969) 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, 234549 + ... + 235108.

It is an arithmetic number, because the mean of its divisors is an integer number (10567305).

Almost surely, 2^131503960 is an apocalyptic number.

131503960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131503960 is an abundant number, since it is smaller than the sum of its proper divisors (206649800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131503960 is a wasteful number, since it uses less digits than its factorization.

131503960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469675 (or 469671 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 131503960 is about 11467.5176040850. The cubic root of 131503960 is about 508.5257437576.

The spelling of 131503960 in words is "one hundred thirty-one million, five hundred three thousand, nine hundred sixty".