102818459 has 2 divisors, whose sum is σ = 102818460. Its totient is φ = 102818458.

The previous prime is 102818453. The next prime is 102818477. The reversal of 102818459 is 954818201.

It is a weak prime.

It is an emirp because it is prime and its reverse (954818201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102818459 - 2²⁰ = 101769883 is a prime.

It is a super-2 number, since 2×102818459² = 21143271022269362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102818453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51409229 + 51409230.

It is an arithmetic number, because the mean of its divisors is an integer number (51409230).

Almost surely, 2^102818459 is an apocalyptic number.

102818459 is a deficient number, since it is larger than the sum of its proper divisors (1).

102818459 is an equidigital number, since it uses as much as digits as its factorization.

102818459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 102818459 is about 10139.9437375165. The cubic root of 102818459 is about 468.4792540437.

The spelling of 102818459 in words is "one hundred two million, eight hundred eighteen thousand, four hundred fifty-nine".