813901051 has 2 divisors, whose sum is σ = 813901052. Its totient is φ = 813901050.

The previous prime is 813900961. The next prime is 813901057. The reversal of 813901051 is 150109318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813901051 - 2⁹ = 813900539 is a prime.

It is not a weakly prime, because it can be changed into another prime (813901057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406950525 + 406950526.

It is an arithmetic number, because the mean of its divisors is an integer number (406950526).

Almost surely, 2^813901051 is an apocalyptic number.

813901051 is a deficient number, since it is larger than the sum of its proper divisors (1).

813901051 is an equidigital number, since it uses as much as digits as its factorization.

813901051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 813901051 is about 28528.9511023451. The cubic root of 813901051 is about 933.6638338746.

The spelling of 813901051 in words is "eight hundred thirteen million, nine hundred one thousand, fifty-one".