2129618159 has 4 divisors (see below), whose sum is σ = 2133348360. Its totient is φ = 2125887960.

The previous prime is 2129618119. The next prime is 2129618177. The reversal of 2129618159 is 9518169212.

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 2129618159 - 2¹² = 2129614063 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 (2129618119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864244 + ... + 1865385.

It is an arithmetic number, because the mean of its divisors is an integer number (533337090).

Almost surely, 2^2129618159 is an apocalyptic number.

2129618159 is a deficient number, since it is larger than the sum of its proper divisors (3730201).

2129618159 is an equidigital number, since it uses as much as digits as its factorization.

2129618159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730200.

The product of its digits is 77760, while the sum is 44.

The square root of 2129618159 is about 46147.7860682395. The cubic root of 2129618159 is about 1286.5714616378.

The spelling of 2129618159 in words is "two billion, one hundred twenty-nine million, six hundred eighteen thousand, one hundred fifty-nine".