100500955 has 4 divisors (see below), whose sum is σ = 120601152. Its totient is φ = 80400760.

The previous prime is 100500931. The next prime is 100500989. The reversal of 100500955 is 559005001.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-100500955 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10050091 + ... + 10050100.

It is an arithmetic number, because the mean of its divisors is an integer number (30150288).

Almost surely, 2^100500955 is an apocalyptic number.

100500955 is a deficient number, since it is larger than the sum of its proper divisors (20100197).

100500955 is an equidigital number, since it uses as much as digits as its factorization.

100500955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20100196.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 100500955 is about 10025.0164588394. The cubic root of 100500955 is about 464.9326684025.

Adding to 100500955 its reverse (559005001), we get a palindrome (659505956).

The spelling of 100500955 in words is "one hundred million, five hundred thousand, nine hundred fifty-five".