2100090239 has 4 divisors (see below), whose sum is σ = 2261635656. Its totient is φ = 1938544824.

The previous prime is 2100090221. The next prime is 2100090241. The reversal of 2100090239 is 9320900012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100090239 - 2⁸ = 2100089983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100090299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80772689 + ... + 80772714.

It is an arithmetic number, because the mean of its divisors is an integer number (565408914).

Almost surely, 2^2100090239 is an apocalyptic number.

2100090239 is a deficient number, since it is larger than the sum of its proper divisors (161545417).

2100090239 is a wasteful number, since it uses less digits than its factorization.

2100090239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161545416.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2100090239 is about 45826.7415271913. The cubic root of 2100090239 is about 1280.5975072935.

The spelling of 2100090239 in words is "two billion, one hundred million, ninety thousand, two hundred thirty-nine".