813194059 has 2 divisors, whose sum is σ = 813194060. Its totient is φ = 813194058.

The previous prime is 813193981. The next prime is 813194089. The reversal of 813194059 is 950491318.

813194059 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813194059 - 2⁹ = 813193547 is a prime.

It is a super-2 number, since 2×813194059² = 1322569155185790962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (813194089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406597029 + 406597030.

It is an arithmetic number, because the mean of its divisors is an integer number (406597030).

Almost surely, 2^813194059 is an apocalyptic number.

813194059 is a deficient number, since it is larger than the sum of its proper divisors (1).

813194059 is an equidigital number, since it uses as much as digits as its factorization.

813194059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 813194059 is about 28516.5576288584. The cubic root of 813194059 is about 933.3934144005.

The spelling of 813194059 in words is "eight hundred thirteen million, one hundred ninety-four thousand, fifty-nine".