2136573939 has 4 divisors (see below), whose sum is σ = 2848765256. Its totient is φ = 1424382624.

The previous prime is 2136573931. The next prime is 2136573949. The reversal of 2136573939 is 9393756312.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2136573939 - 2³ = 2136573931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2136573931) 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, 356095654 + ... + 356095659.

It is an arithmetic number, because the mean of its divisors is an integer number (712191314).

Almost surely, 2^2136573939 is an apocalyptic number.

2136573939 is a deficient number, since it is larger than the sum of its proper divisors (712191317).

2136573939 is an equidigital number, since it uses as much as digits as its factorization.

2136573939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712191316.

The product of its digits is 918540, while the sum is 48.

The square root of 2136573939 is about 46223.0888085165. The cubic root of 2136573939 is about 1287.9706768638.

The spelling of 2136573939 in words is "two billion, one hundred thirty-six million, five hundred seventy-three thousand, nine hundred thirty-nine".