102785164 has 24 divisors (see below), whose sum is σ = 187568640. Its totient is φ = 49222656.

The previous prime is 102785159. The next prime is 102785167. The reversal of 102785164 is 461587201.

102785164 = T₃₆₅ + T₃₆₆ + ... + T₈₇₂.

It is not an unprimeable number, because it can be changed into a prime (102785167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11244 + ... + 18220.

It is an arithmetic number, because the mean of its divisors is an integer number (7815360).

Almost surely, 2^102785164 is an apocalyptic number.

It is an amenable number.

102785164 is a deficient number, since it is larger than the sum of its proper divisors (84783476).

102785164 is a wasteful number, since it uses less digits than its factorization.

102785164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7137 (or 7135 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 102785164 is about 10138.3018301883. The cubic root of 102785164 is about 468.4286804376.

The spelling of 102785164 in words is "one hundred two million, seven hundred eighty-five thousand, one hundred sixty-four".