101856612 has 48 divisors (see below), whose sum is σ = 279220032. Its totient is φ = 28490880.

The previous prime is 101856593. The next prime is 101856647. The reversal of 101856612 is 216658101.

It is a self number, because there is not a number n which added to its sum of digits gives 101856612.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27963 + ... + 31394.

It is an arithmetic number, because the mean of its divisors is an integer number (5817084).

Almost surely, 2^101856612 is an apocalyptic number.

101856612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101856612 is an abundant number, since it is smaller than the sum of its proper divisors (177363420).

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

101856612 is a wasteful number, since it uses less digits than its factorization.

101856612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59388 (or 59386 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 101856612 is about 10092.4036780145. The cubic root of 101856612 is about 467.0138303353.

It can be divided in two parts, 1018 and 56612, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 101856612 in words is "one hundred one million, eight hundred fifty-six thousand, six hundred twelve".