102091636 has 12 divisors (see below), whose sum is σ = 188063680. Its totient is φ = 48359160.

The previous prime is 102091631. The next prime is 102091637. The reversal of 102091636 is 636190201.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102091631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671580 + ... + 671731.

Almost surely, 2^102091636 is an apocalyptic number.

It is an amenable number.

102091636 is a deficient number, since it is larger than the sum of its proper divisors (85972044).

102091636 is a wasteful number, since it uses less digits than its factorization.

102091636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343334 (or 1343332 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 102091636 is about 10104.0405779074. The cubic root of 102091636 is about 467.3727504050.

The spelling of 102091636 in words is "one hundred two million, ninety-one thousand, six hundred thirty-six".