2109242159 has 4 divisors (see below), whose sum is σ = 2118067680. Its totient is φ = 2100416640.

The previous prime is 2109242147. The next prime is 2109242203. The reversal of 2109242159 is 9512429012.

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 2109242159 - 2⁴ = 2109242143 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 (2109242129) 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, 4412402 + ... + 4412879.

It is an arithmetic number, because the mean of its divisors is an integer number (529516920).

Almost surely, 2^2109242159 is an apocalyptic number.

2109242159 is a deficient number, since it is larger than the sum of its proper divisors (8825521).

2109242159 is an equidigital number, since it uses as much as digits as its factorization.

2109242159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8825520.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 2109242159 is about 45926.4864647841. The cubic root of 2109242159 is about 1282.4550373784.

The spelling of 2109242159 in words is "two billion, one hundred nine million, two hundred forty-two thousand, one hundred fifty-nine".