136311013 has 4 divisors (see below), whose sum is σ = 136334380. Its totient is φ = 136287648.

The previous prime is 136310953. The next prime is 136311017. The reversal of 136311013 is 310113631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 310113631 = 79 ⋅3925489.

It can be written as a sum of positive squares in 2 ways, for example, as 129436129 + 6874884 = 11377^2 + 2622^2 .

It is a cyclic number.

It is not a de Polignac number, because 136311013 - 2⁹ = 136310501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136311017) 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, 5203 + ... + 17311.

It is an arithmetic number, because the mean of its divisors is an integer number (34083595).

Almost surely, 2^136311013 is an apocalyptic number.

It is an amenable number.

136311013 is a deficient number, since it is larger than the sum of its proper divisors (23367).

136311013 is a wasteful number, since it uses less digits than its factorization.

136311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23366.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 136311013 is about 11675.2307471844. The cubic root of 136311013 is about 514.6480304711.

Adding to 136311013 its reverse (310113631), we get a palindrome (446424644).

The spelling of 136311013 in words is "one hundred thirty-six million, three hundred eleven thousand, thirteen".