131499180 has 48 divisors (see below), whose sum is σ = 409110240. Its totient is φ = 35066304.

The previous prime is 131499167. The next prime is 131499217. The reversal of 131499180 is 81994131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121219 + ... + 122298.

It is an arithmetic number, because the mean of its divisors is an integer number (8523130).

Almost surely, 2^131499180 is an apocalyptic number.

131499180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131499180 is an abundant number, since it is smaller than the sum of its proper divisors (277611060).

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

131499180 is a wasteful number, since it uses less digits than its factorization.

131499180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243535 (or 243527 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 131499180 is about 11467.3091874249. The cubic root of 131499180 is about 508.5195822638.

The spelling of 131499180 in words is "one hundred thirty-one million, four hundred ninety-nine thousand, one hundred eighty".