102812136 has 32 divisors (see below), whose sum is σ = 293749440. Its totient is φ = 29374848.

The previous prime is 102812131. The next prime is 102812147. The reversal of 102812136 is 631218201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (102812131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305821 + ... + 306156.

It is an arithmetic number, because the mean of its divisors is an integer number (9179670).

Almost surely, 2^102812136 is an apocalyptic number.

It is an amenable number.

102812136 is an abundant number, since it is smaller than the sum of its proper divisors (190937304).

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

102812136 is a wasteful number, since it uses less digits than its factorization.

102812136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611993 (or 611989 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 102812136 is about 10139.6319459830. The cubic root of 102812136 is about 468.4696505312.

The spelling of 102812136 in words is "one hundred two million, eight hundred twelve thousand, one hundred thirty-six".