100085858 has 4 divisors (see below), whose sum is σ = 150128790. Its totient is φ = 50042928.

The previous prime is 100085837. The next prime is 100085893. The reversal of 100085858 is 858580001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 858580001 = 4723 ⋅181787.

It can be written as a sum of positive squares in only one way, i.e., 99341089 + 744769 = 9967^2 + 863^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25021463 + ... + 25021466.

Almost surely, 2^100085858 is an apocalyptic number.

100085858 is a deficient number, since it is larger than the sum of its proper divisors (50042932).

100085858 is an equidigital number, since it uses as much as digits as its factorization.

100085858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50042931.

The product of its (nonzero) digits is 12800, while the sum is 35.

The square root of 100085858 is about 10004.2919789458. The cubic root of 100085858 is about 464.2916845397.

The spelling of 100085858 in words is "one hundred million, eighty-five thousand, eight hundred fifty-eight".