136513013 has 8 divisors (see below), whose sum is σ = 168016128. Its totient is φ = 108010224.

The previous prime is 136512997. The next prime is 136513019. The reversal of 136513013 is 310315631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136513013 - 2⁴ = 136512997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136513013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136513019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749981 + ... + 750162.

It is an arithmetic number, because the mean of its divisors is an integer number (21002016).

Almost surely, 2^136513013 is an apocalyptic number.

136513013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

136513013 is a deficient number, since it is larger than the sum of its proper divisors (31503115).

136513013 is a wasteful number, since it uses less digits than its factorization.

136513013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500163.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 136513013 is about 11683.8783372646. The cubic root of 136513013 is about 514.9021248632.

Adding to 136513013 its reverse (310315631), we get a palindrome (446828644).

The spelling of 136513013 in words is "one hundred thirty-six million, five hundred thirteen thousand, thirteen".