136613243 has 8 divisors (see below), whose sum is σ = 147446208. Its totient is φ = 125826624.

The previous prime is 136613227. The next prime is 136613293. The reversal of 136613243 is 342316631.

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

It is a cyclic number.

It is not a de Polignac number, because 136613243 - 2⁴ = 136613227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136613293) 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 7 ways as a sum of consecutive naturals, for example, 5330 + ... + 17367.

It is an arithmetic number, because the mean of its divisors is an integer number (18430776).

Almost surely, 2^136613243 is an apocalyptic number.

136613243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

136613243 is a deficient number, since it is larger than the sum of its proper divisors (10832965).

136613243 is a wasteful number, since it uses less digits than its factorization.

136613243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23173.

The product of its digits is 7776, while the sum is 29.

The square root of 136613243 is about 11688.1667938133. The cubic root of 136613243 is about 515.0281104460.

Adding to 136613243 its reverse (342316631), we get a palindrome (478929874).

The spelling of 136613243 in words is "one hundred thirty-six million, six hundred thirteen thousand, two hundred forty-three".