13136492231 has 4 divisors (see below), whose sum is σ = 13136739000. Its totient is φ = 13136245464.

The previous prime is 13136492219. The next prime is 13136492261. The reversal of 13136492231 is 13229463131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13136492231 is a prime.

It is a super-2 number, since 2×13136492231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13136492191 and 13136492200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13136492261) 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, 6836 + ... + 162233.

It is an arithmetic number, because the mean of its divisors is an integer number (3284184750).

Almost surely, 2^13136492231 is an apocalyptic number.

13136492231 is a deficient number, since it is larger than the sum of its proper divisors (246769).

13136492231 is an equidigital number, since it uses as much as digits as its factorization.

13136492231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246768.

The product of its digits is 23328, while the sum is 35.

The spelling of 13136492231 in words is "thirteen billion, one hundred thirty-six million, four hundred ninety-two thousand, two hundred thirty-one".