816254059 has 2 divisors, whose sum is σ = 816254060. Its totient is φ = 816254058.

The previous prime is 816254053. The next prime is 816254063. The reversal of 816254059 is 950452618.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 816254059 - 2³ = 816254051 is a prime.

It is not a weakly prime, because it can be changed into another prime (816254051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408127029 + 408127030.

It is an arithmetic number, because the mean of its divisors is an integer number (408127030).

Almost surely, 2^816254059 is an apocalyptic number.

816254059 is a deficient number, since it is larger than the sum of its proper divisors (1).

816254059 is an equidigital number, since it uses as much as digits as its factorization.

816254059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 816254059 is about 28570.1602900649. The cubic root of 816254059 is about 934.5627165854.

The spelling of 816254059 in words is "eight hundred sixteen million, two hundred fifty-four thousand, fifty-nine".