100864854 has 12 divisors (see below), whose sum is σ = 218540556. Its totient is φ = 33621612.

The previous prime is 100864853. The next prime is 100864873. The reversal of 100864854 is 458468001.

100864854 is a `hidden beast` number, since 1 + 0 + 0 + 8 + 648 + 5 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100864853) 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 5 ways as a sum of consecutive naturals, for example, 2801784 + ... + 2801819.

It is an arithmetic number, because the mean of its divisors is an integer number (18211713).

Almost surely, 2^100864854 is an apocalyptic number.

100864854 is an abundant number, since it is smaller than the sum of its proper divisors (117675702).

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

100864854 is a wasteful number, since it uses less digits than its factorization.

100864854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603611 (or 5603608 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 100864854 is about 10043.1496055769. The cubic root of 100864854 is about 465.4931431453.

The spelling of 100864854 in words is "one hundred million, eight hundred sixty-four thousand, eight hundred fifty-four".