131428680 has 32 divisors (see below), whose sum is σ = 394286400. Its totient is φ = 35047616.

The previous prime is 131428673. The next prime is 131428691. The reversal of 131428680 is 86824131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547500 + ... + 547739.

It is an arithmetic number, because the mean of its divisors is an integer number (12321450).

Almost surely, 2^131428680 is an apocalyptic number.

131428680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131428680 is an abundant number, since it is smaller than the sum of its proper divisors (262857720).

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

131428680 is a wasteful number, since it uses less digits than its factorization.

131428680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095253 (or 1095249 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 131428680 is about 11464.2348196467. The cubic root of 131428680 is about 508.4286893288.

The spelling of 131428680 in words is "one hundred thirty-one million, four hundred twenty-eight thousand, six hundred eighty".