100455857 has 4 divisors (see below), whose sum is σ = 101246976. Its totient is φ = 99664740.

The previous prime is 100455833. The next prime is 100455889. The reversal of 100455857 is 758554001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100455857 - 2²⁰ = 99407281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100454857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395369 + ... + 395622.

It is an arithmetic number, because the mean of its divisors is an integer number (25311744).

Almost surely, 2^100455857 is an apocalyptic number.

It is an amenable number.

100455857 is a deficient number, since it is larger than the sum of its proper divisors (791119).

100455857 is an equidigital number, since it uses as much as digits as its factorization.

100455857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791118.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 100455857 is about 10022.7669333373. The cubic root of 100455857 is about 464.8631146007.

The spelling of 100455857 in words is "one hundred million, four hundred fifty-five thousand, eight hundred fifty-seven".