102812 has 6 divisors (see below), whose sum is σ = 179928. Its totient is φ = 51404.

The previous prime is 102811. The next prime is 102829. The reversal of 102812 is 218201.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102812.

It is not an unprimeable number, because it can be changed into a prime (102811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12848 + ... + 12855.

It is an arithmetic number, because the mean of its divisors is an integer number (29988).

2¹⁰²⁸¹² is an apocalyptic number.

It is an amenable number.

102812 is a deficient number, since it is larger than the sum of its proper divisors (77116).

102812 is a wasteful number, since it uses less digits than its factorization.

102812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25707 (or 25705 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 102812 is about 320.6431037774. The cubic root of 102812 is about 46.8469443967.

The spelling of 102812 in words is "one hundred two thousand, eight hundred twelve".