102169986 has 32 divisors (see below), whose sum is σ = 211673088. Its totient is φ = 32842320.

The previous prime is 102169961. The next prime is 102169999. The reversal of 102169986 is 689961201.

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, 63751 + ... + 65333.

It is an arithmetic number, because the mean of its divisors is an integer number (6614784).

Almost surely, 2^102169986 is an apocalyptic number.

102169986 is an abundant number, since it is smaller than the sum of its proper divisors (109503102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102169986 is a wasteful number, since it uses less digits than its factorization.

102169986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 102169986 is about 10107.9169960977. The cubic root of 102169986 is about 467.4922812265.

It can be divided in two parts, 10216 and 9986, that added together give a palindrome (20202).

The spelling of 102169986 in words is "one hundred two million, one hundred sixty-nine thousand, nine hundred eighty-six".