102165992 has 8 divisors (see below), whose sum is σ = 191561250. Its totient is φ = 51082992.

The previous prime is 102165961. The next prime is 102166007. The reversal of 102165992 is 299561201.

It can be written as a sum of positive squares in only one way, i.e., 95374756 + 6791236 = 9766^2 + 2606^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6385367 + ... + 6385382.

Almost surely, 2^102165992 is an apocalyptic number.

It is an amenable number.

102165992 is a deficient number, since it is larger than the sum of its proper divisors (89395258).

102165992 is a wasteful number, since it uses less digits than its factorization.

102165992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12770755 (or 12770751 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 102165992 is about 10107.7194262603. The cubic root of 102165992 is about 467.4861894554.

The spelling of 102165992 in words is "one hundred two million, one hundred sixty-five thousand, nine hundred ninety-two".