131456532240 has 120 divisors (see below), whose sum is σ = 481608960768. Its totient is φ = 31868248320.

The previous prime is 131456532239. The next prime is 131456532253. The reversal of 131456532240 is 42235654131.

131456532240 is a `hidden beast` number, since 1 + 31 + 4 + 56 + 532 + 2 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a junction number, because it is equal to n+sod(n) for n = 131456532195 and 131456532204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8291104 + ... + 8306943.

Almost surely, 2^131456532240 is an apocalyptic number.

131456532240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131456532240 is an abundant number, since it is smaller than the sum of its proper divisors (350152428528).

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

131456532240 is a wasteful number, since it uses less digits than its factorization.

131456532240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16598077 (or 16598068 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 131456532240 in words is "one hundred thirty-one billion, four hundred fifty-six million, five hundred thirty-two thousand, two hundred forty".