83131013597 has 2 divisors, whose sum is σ = 83131013598. Its totient is φ = 83131013596.

The previous prime is 83131013527. The next prime is 83131013687. The reversal of 83131013597 is 79531013138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81299687161 + 1831326436 = 285131^2 + 42794^2 .

It is a cyclic number.

It is not a de Polignac number, because 83131013597 - 2²⁰ = 83129965021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83131013527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41565506798 + 41565506799.

It is an arithmetic number, because the mean of its divisors is an integer number (41565506799).

Almost surely, 2^83131013597 is an apocalyptic number.

It is an amenable number.

83131013597 is a deficient number, since it is larger than the sum of its proper divisors (1).

83131013597 is an equidigital number, since it uses as much as digits as its factorization.

83131013597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 83131013597 in words is "eighty-three billion, one hundred thirty-one million, thirteen thousand, five hundred ninety-seven".