131545434051 has 16 divisors (see below), whose sum is σ = 194892526720. Its totient is φ = 87692275080.

The previous prime is 131545434049. The next prime is 131545434073. The reversal of 131545434051 is 150434545131.

131545434051 is a `hidden beast` number, since 1 + 31 + 545 + 4 + 34 + 0 + 51 = 666.

It is not a de Polignac number, because 131545434051 - 2¹ = 131545434049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131545433997 and 131545434015.

It is not an unprimeable number, because it can be changed into a prime (131545434011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428856 + ... + 668586.

It is an arithmetic number, because the mean of its divisors is an integer number (12180782920).

Almost surely, 2^131545434051 is an apocalyptic number.

131545434051 is a deficient number, since it is larger than the sum of its proper divisors (63347092669).

131545434051 is a wasteful number, since it uses less digits than its factorization.

131545434051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260063 (or 260057 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 131545434051 its reverse (150434545131), we get a palindrome (281979979182).

The spelling of 131545434051 in words is "one hundred thirty-one billion, five hundred forty-five million, four hundred thirty-four thousand, fifty-one".