100105455 has 32 divisors (see below), whose sum is σ = 163586304. Its totient is φ = 52263936.

The previous prime is 100105451. The next prime is 100105483. The reversal of 100105455 is 554501001.

It is not a de Polignac number, because 100105455 - 2² = 100105451 is a prime.

It is a super-2 number, since 2×100105455² = 20042204241514050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100105451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155364 + ... + 156006.

It is an arithmetic number, because the mean of its divisors is an integer number (5112072).

Almost surely, 2^100105455 is an apocalyptic number.

100105455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100105455 is a deficient number, since it is larger than the sum of its proper divisors (63480849).

100105455 is a wasteful number, since it uses less digits than its factorization.

100105455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

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

The square root of 100105455 is about 10005.2713606379. The cubic root of 100105455 is about 464.3219856250.

Adding to 100105455 its reverse (554501001), we get a palindrome (654606456).

The spelling of 100105455 in words is "one hundred million, one hundred five thousand, four hundred fifty-five".