100512255 has 16 divisors (see below), whose sum is σ = 160980480. Its totient is φ = 53552928.

The previous prime is 100512229. The next prime is 100512263. The reversal of 100512255 is 552215001.

It is not a de Polignac number, because 100512255 - 2¹⁰ = 100511231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15606 + ... + 21084.

It is an arithmetic number, because the mean of its divisors is an integer number (10061280).

Almost surely, 2^100512255 is an apocalyptic number.

100512255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100512255 is a deficient number, since it is larger than the sum of its proper divisors (60468225).

100512255 is a wasteful number, since it uses less digits than its factorization.

100512255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 100512255 is about 10025.5800330953. The cubic root of 100512255 is about 464.9500929211.

Adding to 100512255 its reverse (552215001), we get a palindrome (652727256).

The spelling of 100512255 in words is "one hundred million, five hundred twelve thousand, two hundred fifty-five".