100055105 has 16 divisors (see below), whose sum is σ = 121504320. Its totient is φ = 79092288.

The previous prime is 100055101. The next prime is 100055147. The reversal of 100055105 is 501550001.

It is a cyclic number.

It is not a de Polignac number, because 100055105 - 2² = 100055101 is a prime.

It is a super-2 number, since 2×100055105² = 20022048073122050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100055101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238586 + ... + 239004.

It is an arithmetic number, because the mean of its divisors is an integer number (7594020).

Almost surely, 2^100055105 is an apocalyptic number.

It is an amenable number.

100055105 is a deficient number, since it is larger than the sum of its proper divisors (21449215).

100055105 is a wasteful number, since it uses less digits than its factorization.

100055105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 100055105 is about 10002.7548705344. The cubic root of 100055105 is about 464.2441259564.

The spelling of 100055105 in words is "one hundred million, fifty-five thousand, one hundred five".