100554455 has 16 divisors (see below), whose sum is σ = 125193600. Its totient is φ = 77441280.

The previous prime is 100554449. The next prime is 100554457. The reversal of 100554455 is 554455001.

It is a happy number.

It is not a de Polignac number, because 100554455 - 2¹⁴ = 100538071 is a prime.

It is a super-2 number, since 2×100554455² = 20222396840694050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100554457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61691 + ... + 63299.

It is an arithmetic number, because the mean of its divisors is an integer number (7824600).

Almost surely, 2^100554455 is an apocalyptic number.

100554455 is a deficient number, since it is larger than the sum of its proper divisors (24639145).

100554455 is a wasteful number, since it uses less digits than its factorization.

100554455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 100554455 is about 10027.6844286206. The cubic root of 100554455 is about 465.0151534739.

The spelling of 100554455 in words is "one hundred million, five hundred fifty-four thousand, four hundred fifty-five".