131974280 has 16 divisors (see below), whose sum is σ = 296942220. Its totient is φ = 52789696.

The previous prime is 131974237. The next prime is 131974289. The reversal of 131974280 is 82479131.

It can be written as a sum of positive squares in 2 ways, for example, as 129458884 + 2515396 = 11378^2 + 1586^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131974280.

It is not an unprimeable number, because it can be changed into a prime (131974289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649639 + ... + 1649718.

Almost surely, 2^131974280 is an apocalyptic number.

131974280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131974280 is an abundant number, since it is smaller than the sum of its proper divisors (164967940).

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

131974280 is a wasteful number, since it uses less digits than its factorization.

131974280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299368 (or 3299364 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 131974280 is about 11488.0059192185. The cubic root of 131974280 is about 509.1312648513.

The spelling of 131974280 in words is "one hundred thirty-one million, nine hundred seventy-four thousand, two hundred eighty".