100557806 has 8 divisors (see below), whose sum is σ = 151010184. Its totient is φ = 50221080.

The previous prime is 100557803. The next prime is 100557859. The reversal of 100557806 is 608755001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×100557806² = 20223744695067272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100557803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26705 + ... + 30236.

It is an arithmetic number, because the mean of its divisors is an integer number (18876273).

Almost surely, 2^100557806 is an apocalyptic number.

100557806 is a deficient number, since it is larger than the sum of its proper divisors (50452378).

100557806 is an equidigital number, since it uses as much as digits as its factorization.

100557806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57826.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 100557806 is about 10027.8515146566. The cubic root of 100557806 is about 465.0203189950.

The spelling of 100557806 in words is "one hundred million, five hundred fifty-seven thousand, eight hundred six".