100140555 has 16 divisors (see below), whose sum is σ = 160930080. Its totient is φ = 53173248.

The previous prime is 100140541. The next prime is 100140563. The reversal of 100140555 is 555041001.

It is not a de Polignac number, because 100140555 - 2⁴ = 100140539 is a prime.

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, 11142 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (10058130).

Almost surely, 2^100140555 is an apocalyptic number.

100140555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100140555 is a deficient number, since it is larger than the sum of its proper divisors (60789525).

100140555 is a wasteful number, since it uses less digits than its factorization.

100140555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29390.

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

The square root of 100140555 is about 10007.0252822705. The cubic root of 100140555 is about 464.3762477271.

Adding to 100140555 its reverse (555041001), we get a palindrome (655181556).

The spelling of 100140555 in words is "one hundred million, one hundred forty thousand, five hundred fifty-five".