102159865 has 16 divisors (see below), whose sum is σ = 129467520. Its totient is φ = 77172480.

The previous prime is 102159853. The next prime is 102159899. The reversal of 102159865 is 568951201.

It is not a de Polignac number, because 102159865 - 2¹¹ = 102157817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30420 + ... + 33610.

It is an arithmetic number, because the mean of its divisors is an integer number (8091720).

Almost surely, 2^102159865 is an apocalyptic number.

It is an amenable number.

102159865 is a deficient number, since it is larger than the sum of its proper divisors (27307655).

102159865 is a wasteful number, since it uses less digits than its factorization.

102159865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552.

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 102159865 is about 10107.4163365323. The cubic root of 102159865 is about 467.4768440588.

The spelling of 102159865 in words is "one hundred two million, one hundred fifty-nine thousand, eight hundred sixty-five".