102812836 has 24 divisors (see below), whose sum is σ = 205873920. Its totient is φ = 44009472.

The previous prime is 102812813. The next prime is 102812867. The reversal of 102812836 is 638218201.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 102812798 and 102812807.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29220 + ... + 32548.

It is an arithmetic number, because the mean of its divisors is an integer number (8578080).

Almost surely, 2^102812836 is an apocalyptic number.

It is an amenable number.

102812836 is an abundant number, since it is smaller than the sum of its proper divisors (103061084).

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

102812836 is a wasteful number, since it uses less digits than its factorization.

102812836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443 (or 4441 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 102812836 is about 10139.6664639425. Note that the first 3 decimals coincide. The cubic root of 102812836 is about 468.4707137261.

The spelling of 102812836 in words is "one hundred two million, eight hundred twelve thousand, eight hundred thirty-six".