100984155 has 16 divisors (see below), whose sum is σ = 162016800. Its totient is φ = 53710848.

The previous prime is 100984151. The next prime is 100984159. The reversal of 100984155 is 551489001.

It is an interprime number because it is at equal distance from previous prime (100984151) and next prime (100984159).

It is not a de Polignac number, because 100984155 - 2² = 100984151 is a prime.

It is a super-2 number, since 2×100984155² = 20395599122128050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100984151) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3430 + ... + 14619.

It is an arithmetic number, because the mean of its divisors is an integer number (10126050).

Almost surely, 2^100984155 is an apocalyptic number.

100984155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100984155 is a deficient number, since it is larger than the sum of its proper divisors (61032645).

100984155 is a wasteful number, since it uses less digits than its factorization.

100984155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18430.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 100984155 is about 10049.0872719864. The cubic root of 100984155 is about 465.6765962673.

The spelling of 100984155 in words is "one hundred million, nine hundred eighty-four thousand, one hundred fifty-five".