100844055 has 64 divisors (see below), whose sum is σ = 198414720. Its totient is φ = 48273408.

The previous prime is 100844033. The next prime is 100844057. The reversal of 100844055 is 550448001.

It is a de Polignac number, because none of the positive numbers 2^k-100844055 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100844057) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64159 + ... + 65711.

It is an arithmetic number, because the mean of its divisors is an integer number (3100230).

Almost surely, 2^100844055 is an apocalyptic number.

100844055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100844055 is a deficient number, since it is larger than the sum of its proper divisors (97570665).

100844055 is a wasteful number, since it uses less digits than its factorization.

100844055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1611 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 100844055 is about 10042.1140702543. The cubic root of 100844055 is about 465.4611450242.

The spelling of 100844055 in words is "one hundred million, eight hundred forty-four thousand, fifty-five".