131780484 has 36 divisors (see below), whose sum is σ = 363395760. Its totient is φ = 39933360.

The previous prime is 131780483. The next prime is 131780497. The reversal of 131780484 is 484087131.

131780484 is a `hidden beast` number, since 1 + 3 + 178 + 0 + 484 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (131780483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165994 + ... + 166785.

Almost surely, 2^131780484 is an apocalyptic number.

It is an amenable number.

131780484 is an abundant number, since it is smaller than the sum of its proper divisors (231615276).

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

131780484 is a wasteful number, since it uses less digits than its factorization.

131780484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332800 (or 332795 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 131780484 is about 11479.5681103428. The cubic root of 131780484 is about 508.8819335983.

The spelling of 131780484 in words is "one hundred thirty-one million, seven hundred eighty thousand, four hundred eighty-four".