102728312 has 16 divisors (see below), whose sum is σ = 194524200. Its totient is φ = 50855200.

The previous prime is 102728291. The next prime is 102728341. The reversal of 102728312 is 213827201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62762 + ... + 64377.

Almost surely, 2^102728312 is an apocalyptic number.

It is an amenable number.

102728312 is a deficient number, since it is larger than the sum of its proper divisors (91795888).

102728312 is a wasteful number, since it uses less digits than its factorization.

102728312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127246 (or 127242 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 102728312 is about 10135.4976197521. The cubic root of 102728312 is about 468.3422995572.

The spelling of 102728312 in words is "one hundred two million, seven hundred twenty-eight thousand, three hundred twelve".