80101817 has 2 divisors, whose sum is σ = 80101818. Its totient is φ = 80101816.

The previous prime is 80101793. The next prime is 80101831. The reversal of 80101817 is 71810108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76457536 + 3644281 = 8744^2 + 1909^2 .

It is a cyclic number.

It is not a de Polignac number, because 80101817 - 2¹⁰ = 80100793 is a prime.

It is not a weakly prime, because it can be changed into another prime (80101837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40050908 + 40050909.

It is an arithmetic number, because the mean of its divisors is an integer number (40050909).

Almost surely, 2^80101817 is an apocalyptic number.

It is an amenable number.

80101817 is a deficient number, since it is larger than the sum of its proper divisors (1).

80101817 is an equidigital number, since it uses as much as digits as its factorization.

80101817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 80101817 is about 8949.9618434941. The cubic root of 80101817 is about 431.0696589086.

The spelling of 80101817 in words is "eighty million, one hundred one thousand, eight hundred seventeen".