100561886 has 8 divisors (see below), whose sum is σ = 151184664. Its totient is φ = 50167000.

The previous prime is 100561873. The next prime is 100561891. The reversal of 100561886 is 688165001.

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

It is a super-2 number, since 2×100561886² = 20225385831753992, which contains 22 as substring.

It is a congruent 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, 55865 + ... + 57636.

It is an arithmetic number, because the mean of its divisors is an integer number (18898083).

Almost surely, 2^100561886 is an apocalyptic number.

100561886 is a deficient number, since it is larger than the sum of its proper divisors (50622778).

100561886 is a wasteful number, since it uses less digits than its factorization.

100561886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113946.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 100561886 is about 10028.0549460002. The cubic root of 100561886 is about 465.0266081047.

The spelling of 100561886 in words is "one hundred million, five hundred sixty-one thousand, eight hundred eighty-six".