131435645051 has 4 divisors (see below), whose sum is σ = 138353310600. Its totient is φ = 124517979504.

The previous prime is 131435644981. The next prime is 131435645057. The reversal of 131435645051 is 150546534131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131435645051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131435644996 and 131435645014.

It is not an unprimeable number, because it can be changed into a prime (131435645057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3458832746 + ... + 3458832783.

It is an arithmetic number, because the mean of its divisors is an integer number (34588327650).

Almost surely, 2^131435645051 is an apocalyptic number.

131435645051 is a deficient number, since it is larger than the sum of its proper divisors (6917665549).

131435645051 is an equidigital number, since it uses as much as digits as its factorization.

131435645051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6917665548.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 131435645051 in words is "one hundred thirty-one billion, four hundred thirty-five million, six hundred forty-five thousand, fifty-one".