100100255 has 8 divisors (see below), whose sum is σ = 125343072. Its totient is φ = 76598368.

The previous prime is 100100249. The next prime is 100100279. The reversal of 100100255 is 552001001.

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

It is a cyclic number.

It is not a de Polignac number, because 100100255 - 2⁴ = 100100239 is a prime.

It is a super-2 number, since 2×100100255² = 20040122102130050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435104 + ... + 435333.

It is an arithmetic number, because the mean of its divisors is an integer number (15667884).

Almost surely, 2^100100255 is an apocalyptic number.

100100255 is a deficient number, since it is larger than the sum of its proper divisors (25242817).

100100255 is an equidigital number, since it uses as much as digits as its factorization.

100100255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870465.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 100100255 is about 10005.0114942463. The cubic root of 100100255 is about 464.3139457164.

Adding to 100100255 its reverse (552001001), we get a palindrome (652101256).

The spelling of 100100255 in words is "one hundred million, one hundred thousand, two hundred fifty-five".