131534450433 has 6 divisors (see below), whose sum is σ = 189994206194. Its totient is φ = 87689633616.

The previous prime is 131534450429. The next prime is 131534450461. The reversal of 131534450433 is 334054435131.

131534450433 is a `hidden beast` number, since 1 + 31 + 53 + 44 + 504 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 123561389169 + 7973061264 = 351513^2 + 89292^2 .

It is not a de Polignac number, because 131534450433 - 2² = 131534450429 is a prime.

It is a super-2 number, since 2×131534450433² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131534450413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7307469460 + ... + 7307469477.

Almost surely, 2^131534450433 is an apocalyptic number.

It is an amenable number.

131534450433 is a deficient number, since it is larger than the sum of its proper divisors (58459755761).

131534450433 is a wasteful number, since it uses less digits than its factorization.

131534450433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14614938943 (or 14614938940 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 131534450433 its reverse (334054435131), we get a palindrome (465588885564).

The spelling of 131534450433 in words is "one hundred thirty-one billion, five hundred thirty-four million, four hundred fifty thousand, four hundred thirty-three".