2136154839 has 64 divisors (see below), whose sum is σ = 3723761664. Its totient is φ = 1057038336.

The previous prime is 2136154829. The next prime is 2136154843. The reversal of 2136154839 is 9384516312.

It is not a de Polignac number, because 2136154839 - 2⁵ = 2136154807 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2136154839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136154829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2009022 + ... + 2010084.

It is an arithmetic number, because the mean of its divisors is an integer number (58183776).

Almost surely, 2^2136154839 is an apocalyptic number.

2136154839 is a deficient number, since it is larger than the sum of its proper divisors (1587606825).

2136154839 is a wasteful number, since it uses less digits than its factorization.

2136154839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536.

The product of its digits is 155520, while the sum is 42.

The square root of 2136154839 is about 46218.5551375203. Note that the first 3 decimals coincide. The cubic root of 2136154839 is about 1287.8864573261.

The spelling of 2136154839 in words is "two billion, one hundred thirty-six million, one hundred fifty-four thousand, eight hundred thirty-nine".