100099085 has 4 divisors (see below), whose sum is σ = 120118908. Its totient is φ = 80079264.

The previous prime is 100099073. The next prime is 100099091. The reversal of 100099085 is 580990001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50495236 + 49603849 = 7106^2 + 7043^2 .

It is a cyclic number.

It is not a de Polignac number, because 100099085 - 2¹² = 100094989 is a prime.

It is a Duffinian number.

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, 10009904 + ... + 10009913.

It is an arithmetic number, because the mean of its divisors is an integer number (30029727).

Almost surely, 2^100099085 is an apocalyptic number.

It is an amenable number.

100099085 is a deficient number, since it is larger than the sum of its proper divisors (20019823).

100099085 is an equidigital number, since it uses as much as digits as its factorization.

100099085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20019822.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 100099085 is about 10004.9530233780. The cubic root of 100099085 is about 464.3121366986.

The spelling of 100099085 in words is "one hundred million, ninety-nine thousand, eighty-five".