136613613 has 4 divisors (see below), whose sum is σ = 182151488. Its totient is φ = 91075740.

The previous prime is 136613593. The next prime is 136613627. The reversal of 136613613 is 316316631.

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 not a de Polignac number, because 136613613 - 2⁶ = 136613549 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 (136613413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22768933 + ... + 22768938.

It is an arithmetic number, because the mean of its divisors is an integer number (45537872).

Almost surely, 2^136613613 is an apocalyptic number.

It is an amenable number.

136613613 is a deficient number, since it is larger than the sum of its proper divisors (45537875).

136613613 is an equidigital number, since it uses as much as digits as its factorization.

136613613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45537874.

The product of its digits is 5832, while the sum is 30.

The square root of 136613613 is about 11688.1826217766. The cubic root of 136613613 is about 515.0285754088.

The spelling of 136613613 in words is "one hundred thirty-six million, six hundred thirteen thousand, six hundred thirteen".