100740855 has 16 divisors (see below), whose sum is σ = 166385664. Its totient is φ = 51995040.

The previous prime is 100740847. The next prime is 100740859. The reversal of 100740855 is 558047001.

It is not a de Polignac number, because 100740855 - 2³ = 100740847 is a prime.

It is a super-2 number, since 2×100740855² = 20297439732262050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100740859) 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, 107859 + ... + 108788.

It is an arithmetic number, because the mean of its divisors is an integer number (10399104).

Almost surely, 2^100740855 is an apocalyptic number.

100740855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100740855 is a deficient number, since it is larger than the sum of its proper divisors (65644809).

100740855 is a wasteful number, since it uses less digits than its factorization.

100740855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216686.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 100740855 is about 10036.9743947068. The cubic root of 100740855 is about 465.3023123744.

Adding to 100740855 its reverse (558047001), we get a palindrome (658787856).

The spelling of 100740855 in words is "one hundred million, seven hundred forty thousand, eight hundred fifty-five".