131780982 has 32 divisors (see below), whose sum is σ = 270534528. Its totient is φ = 42771456.

The previous prime is 131780917. The next prime is 131780989. The reversal of 131780982 is 289087131.

It is a self number, because there is not a number n which added to its sum of digits gives 131780982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131780989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113718 + ... + 114870.

It is an arithmetic number, because the mean of its divisors is an integer number (8454204).

Almost surely, 2^131780982 is an apocalyptic number.

131780982 is an abundant number, since it is smaller than the sum of its proper divisors (138753546).

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

131780982 is a wasteful number, since it uses less digits than its factorization.

131780982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 131780982 is about 11479.5898010338. The cubic root of 131780982 is about 508.8825746211.

The spelling of 131780982 in words is "one hundred thirty-one million, seven hundred eighty thousand, nine hundred eighty-two".