818101859 has 2 divisors, whose sum is σ = 818101860. Its totient is φ = 818101858.

The previous prime is 818101793. The next prime is 818101877. The reversal of 818101859 is 958101818.

It is a happy number.

818101859 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 818101859 - 2²⁰ = 817053283 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (818101159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409050929 + 409050930.

It is an arithmetic number, because the mean of its divisors is an integer number (409050930).

Almost surely, 2^818101859 is an apocalyptic number.

818101859 is a deficient number, since it is larger than the sum of its proper divisors (1).

818101859 is an equidigital number, since it uses as much as digits as its factorization.

818101859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 41.

The square root of 818101859 is about 28602.4799449279. The cubic root of 818101859 is about 935.2673924245.

Subtracting from 818101859 its sum of digits (41), we obtain a palindrome (818101818).

The spelling of 818101859 in words is "eight hundred eighteen million, one hundred one thousand, eight hundred fifty-nine".