2136537913 has 4 divisors (see below), whose sum is σ = 2172750480. Its totient is φ = 2100325348.

The previous prime is 2136537911. The next prime is 2136537959. The reversal of 2136537913 is 3197356312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2136537913 - 2¹ = 2136537911 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2136537911) 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, 18106195 + ... + 18106312.

It is an arithmetic number, because the mean of its divisors is an integer number (543187620).

Almost surely, 2^2136537913 is an apocalyptic number.

It is an amenable number.

2136537913 is a deficient number, since it is larger than the sum of its proper divisors (36212567).

2136537913 is an equidigital number, since it uses as much as digits as its factorization.

2136537913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36212566.

The product of its digits is 102060, while the sum is 40.

The square root of 2136537913 is about 46222.6991098529. The cubic root of 2136537913 is about 1287.9634377521.

The spelling of 2136537913 in words is "two billion, one hundred thirty-six million, five hundred thirty-seven thousand, nine hundred thirteen".