131455240514021 has 8 divisors (see below), whose sum is σ = 139800472822080. Its totient is φ = 123252661749888.

The previous prime is 131455240514011. The next prime is 131455240514027. The reversal of 131455240514021 is 120415042554131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131455240514021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131455240514027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35663384081 + ... + 35663387766.

It is an arithmetic number, because the mean of its divisors is an integer number (17475059102760).

Almost surely, 2^{131455240514021} is an apocalyptic number.

It is an amenable number.

131455240514021 is a deficient number, since it is larger than the sum of its proper divisors (8345232308059).

131455240514021 is an equidigital number, since it uses as much as digits as its factorization.

131455240514021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71326771963.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 131455240514021 in words is "one hundred thirty-one trillion, four hundred fifty-five billion, two hundred forty million, five hundred fourteen thousand, twenty-one".