102099959 has 16 divisors (see below), whose sum is σ = 111767040. Its totient is φ = 92707680.

The previous prime is 102099953. The next prime is 102099961. The reversal of 102099959 is 959990201.

It is not a de Polignac number, because 102099959 - 2⁸ = 102099703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102099953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284222 + ... + 284580.

It is an arithmetic number, because the mean of its divisors is an integer number (6985440).

Almost surely, 2^102099959 is an apocalyptic number.

102099959 is a deficient number, since it is larger than the sum of its proper divisors (9667081).

102099959 is a wasteful number, since it uses less digits than its factorization.

102099959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670.

The product of its (nonzero) digits is 65610, while the sum is 44.

The square root of 102099959 is about 10104.4524344469. The cubic root of 102099959 is about 467.3854508829.

The spelling of 102099959 in words is "one hundred two million, ninety-nine thousand, nine hundred fifty-nine".