131405505054345 has 24 divisors (see below), whose sum is σ = 227861868813696. Its totient is φ = 70054527807648.

The previous prime is 131405505054331. The next prime is 131405505054377. The reversal of 131405505054345 is 543450505504131.

It is a happy number.

131405505054345 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 0 + 5 + 50 + 50 + 543 + 4 + 5 = 666.

131405505054345 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-131405505054345 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 131405505054345.

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, 591725697 + ... + 591947726.

It is an arithmetic number, because the mean of its divisors is an integer number (9494244533904).

Almost surely, 2^{131405505054345} is an apocalyptic number.

131405505054345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131405505054345 is a deficient number, since it is larger than the sum of its proper divisors (96456363759351).

131405505054345 is a wasteful number, since it uses less digits than its factorization.

131405505054345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183675901 (or 1183675898 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 131405505054345 in words is "one hundred thirty-one trillion, four hundred five billion, five hundred five million, fifty-four thousand, three hundred forty-five".