100260855 has 16 divisors (see below), whose sum is σ = 178241760. Its totient is φ = 53472384.

The previous prime is 100260833. The next prime is 100260857. The reversal of 100260855 is 558062001.

100260855 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 608 + 55 = 666.

It is not a de Polignac number, because 100260855 - 2¹⁴ = 100244471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100260857) 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, 371202 + ... + 371471.

It is an arithmetic number, because the mean of its divisors is an integer number (11140110).

Almost surely, 2^100260855 is an apocalyptic number.

100260855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100260855 is a deficient number, since it is larger than the sum of its proper divisors (77980905).

100260855 is an equidigital number, since it uses as much as digits as its factorization.

100260855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742687 (or 742681 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 100260855 is about 10013.0342554093. The cubic root of 100260855 is about 464.5621268224.

The spelling of 100260855 in words is "one hundred million, two hundred sixty thousand, eight hundred fifty-five".