80136863 has 2 divisors, whose sum is σ = 80136864. Its totient is φ = 80136862.

The previous prime is 80136839. The next prime is 80136883. The reversal of 80136863 is 36863108.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80136863 - 2⁶ = 80136799 is a prime.

It is a super-2 number, since 2×80136863² = 12843833622961538, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80136883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40068431 + 40068432.

It is an arithmetic number, because the mean of its divisors is an integer number (40068432).

Almost surely, 2^80136863 is an apocalyptic number.

80136863 is a deficient number, since it is larger than the sum of its proper divisors (1).

80136863 is an equidigital number, since it uses as much as digits as its factorization.

80136863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 80136863 is about 8951.9195148303. The cubic root of 80136863 is about 431.1325166778.

The spelling of 80136863 in words is "eighty million, one hundred thirty-six thousand, eight hundred sixty-three".