102818959 has 2 divisors, whose sum is σ = 102818960. Its totient is φ = 102818958.

The previous prime is 102818897. The next prime is 102818983. The reversal of 102818959 is 959818201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102818959 - 2¹⁹ = 102294671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102818999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51409479 + 51409480.

It is an arithmetic number, because the mean of its divisors is an integer number (51409480).

Almost surely, 2^102818959 is an apocalyptic number.

102818959 is a deficient number, since it is larger than the sum of its proper divisors (1).

102818959 is an equidigital number, since it uses as much as digits as its factorization.

102818959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 43.

The square root of 102818959 is about 10139.9683924557. The cubic root of 102818959 is about 468.4800134379.

The spelling of 102818959 in words is "one hundred two million, eight hundred eighteen thousand, nine hundred fifty-nine".