812560092139 has 2 divisors, whose sum is σ = 812560092140. Its totient is φ = 812560092138.

The previous prime is 812560092101. The next prime is 812560092163. The reversal of 812560092139 is 931290065218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812560092139 - 2⁷ = 812560092011 is a prime.

It is not a weakly prime, because it can be changed into another prime (812560092439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406280046069 + 406280046070.

It is an arithmetic number, because the mean of its divisors is an integer number (406280046070).

Almost surely, 2^812560092139 is an apocalyptic number.

812560092139 is a deficient number, since it is larger than the sum of its proper divisors (1).

812560092139 is an equidigital number, since it uses as much as digits as its factorization.

812560092139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 812560092139 in words is "eight hundred twelve billion, five hundred sixty million, ninety-two thousand, one hundred thirty-nine".