100988555 has 8 divisors (see below), whose sum is σ = 122112144. Its totient is φ = 80173600.

The previous prime is 100988549. The next prime is 100988557. The reversal of 100988555 is 555889001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100988555 - 2²⁴ = 84211339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100988557) 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 7 ways as a sum of consecutive naturals, for example, 76436 + ... + 77745.

It is an arithmetic number, because the mean of its divisors is an integer number (15264018).

Almost surely, 2^100988555 is an apocalyptic number.

100988555 is a deficient number, since it is larger than the sum of its proper divisors (21123589).

100988555 is a wasteful number, since it uses less digits than its factorization.

100988555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154317.

The product of its (nonzero) digits is 72000, while the sum is 41.

The square root of 100988555 is about 10049.3061949569. The cubic root of 100988555 is about 465.6833595305.

The spelling of 100988555 in words is "one hundred million, nine hundred eighty-eight thousand, five hundred fifty-five".