2140099873 has 4 divisors (see below), whose sum is σ = 2140366228. Its totient is φ = 2139833520.

The previous prime is 2140099853. The next prime is 2140099877. The reversal of 2140099873 is 3789900412.

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 1395246609 + 744853264 = 37353^2 + 27292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2140099873 is a prime.

It is a super-2 number, since 2×2140099873² = 9160054932829232258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140099877) 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, 120738 + ... + 137323.

It is an arithmetic number, because the mean of its divisors is an integer number (535091557).

Almost surely, 2^2140099873 is an apocalyptic number.

It is an amenable number.

2140099873 is a deficient number, since it is larger than the sum of its proper divisors (266355).

2140099873 is an equidigital number, since it uses as much as digits as its factorization.

2140099873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266354.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2140099873 is about 46261.2134838679. The cubic root of 2140099873 is about 1288.6787893042.

The spelling of 2140099873 in words is "two billion, one hundred forty million, ninety-nine thousand, eight hundred seventy-three".