2139095018 has 8 divisors (see below), whose sum is σ = 3209604480. Its totient is φ = 1069226860.

The previous prime is 2139095017. The next prime is 2139095053. The reversal of 2139095018 is 8105909312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2139095011) 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, 151898 + ... + 165381.

It is an arithmetic number, because the mean of its divisors is an integer number (401200560).

Almost surely, 2^2139095018 is an apocalyptic number.

2139095018 is a deficient number, since it is larger than the sum of its proper divisors (1070509462).

2139095018 is a wasteful number, since it uses less digits than its factorization.

2139095018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320652.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 2139095018 is about 46250.3515446099. The cubic root of 2139095018 is about 1288.4770638197.

The spelling of 2139095018 in words is "two billion, one hundred thirty-nine million, ninety-five thousand, eighteen".