131082940 has 12 divisors (see below), whose sum is σ = 275274216. Its totient is φ = 52433168.

The previous prime is 131082901. The next prime is 131082967. The reversal of 131082940 is 49280131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131082899 and 131082908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3277054 + ... + 3277093.

It is an arithmetic number, because the mean of its divisors is an integer number (22939518).

Almost surely, 2^131082940 is an apocalyptic number.

131082940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131082940 is an abundant number, since it is smaller than the sum of its proper divisors (144191276).

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

131082940 is a wasteful number, since it uses less digits than its factorization.

131082940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6554156 (or 6554154 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 131082940 is about 11449.1458196671. The cubic root of 131082940 is about 507.9824688599.

The spelling of 131082940 in words is "one hundred thirty-one million, eighty-two thousand, nine hundred forty".