136249533713 has 4 divisors (see below), whose sum is σ = 136317899748. Its totient is φ = 136181167680.

The previous prime is 136249533683. The next prime is 136249533727. The reversal of 136249533713 is 317335942631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71594775184 + 64654758529 = 267572^2 + 254273^2 .

It is a cyclic number.

It is not a de Polignac number, because 136249533713 - 2¹⁶ = 136249468177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136249533113) 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, 34180028 + ... + 34184013.

It is an arithmetic number, because the mean of its divisors is an integer number (34079474937).

Almost surely, 2^136249533713 is an apocalyptic number.

It is an amenable number.

136249533713 is a deficient number, since it is larger than the sum of its proper divisors (68366035).

136249533713 is an equidigital number, since it uses as much as digits as its factorization.

136249533713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68366034.

The product of its digits is 1224720, while the sum is 47.

The spelling of 136249533713 in words is "one hundred thirty-six billion, two hundred forty-nine million, five hundred thirty-three thousand, seven hundred thirteen".