131032660 has 48 divisors (see below), whose sum is σ = 309883392. Its totient is φ = 46108800.

The previous prime is 131032621. The next prime is 131032669. The reversal of 131032660 is 66230131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131032669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2787 + ... + 16426.

It is an arithmetic number, because the mean of its divisors is an integer number (6455904).

Almost surely, 2^131032660 is an apocalyptic number.

131032660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131032660 is an abundant number, since it is smaller than the sum of its proper divisors (178850732).

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

131032660 is a wasteful number, since it uses less digits than its factorization.

131032660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19264 (or 19262 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 131032660 is about 11446.9498120678. The cubic root of 131032660 is about 507.9175109412.

Adding to 131032660 its reverse (66230131), we get a palindrome (197262791).

The spelling of 131032660 in words is "one hundred thirty-one million, thirty-two thousand, six hundred sixty".