131280330 has 16 divisors (see below), whose sum is σ = 315072864. Its totient is φ = 35008080.

The previous prime is 131280301. The next prime is 131280371. The reversal of 131280330 is 33082131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131280297 and 131280306.

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, 2187976 + ... + 2188035.

It is an arithmetic number, because the mean of its divisors is an integer number (19692054).

Almost surely, 2^131280330 is an apocalyptic number.

131280330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131280330 is an abundant number, since it is smaller than the sum of its proper divisors (183792534).

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

131280330 is a wasteful number, since it uses less digits than its factorization.

131280330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376021.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 131280330 is about 11457.7628706480. The cubic root of 131280330 is about 508.2373211722.

The spelling of 131280330 in words is "one hundred thirty-one million, two hundred eighty thousand, three hundred thirty".