136724223 has 4 divisors (see below), whose sum is σ = 182298968. Its totient is φ = 91149480.

The previous prime is 136724207. The next prime is 136724233. The reversal of 136724223 is 322427631.

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

It is not a de Polignac number, because 136724223 - 2⁴ = 136724207 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 (136724233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22787368 + ... + 22787373.

It is an arithmetic number, because the mean of its divisors is an integer number (45574742).

Almost surely, 2^136724223 is an apocalyptic number.

136724223 is a deficient number, since it is larger than the sum of its proper divisors (45574745).

136724223 is an equidigital number, since it uses as much as digits as its factorization.

136724223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45574744.

The product of its digits is 12096, while the sum is 30.

The square root of 136724223 is about 11692.9133666508. The cubic root of 136724223 is about 515.1675365312.

The spelling of 136724223 in words is "one hundred thirty-six million, seven hundred twenty-four thousand, two hundred twenty-three".