136331223 has 32 divisors (see below), whose sum is σ = 212722176. Its totient is φ = 76059648.

The previous prime is 136331207. The next prime is 136331249. The reversal of 136331223 is 322133631.

It is a happy number.

136331223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136331223 - 2⁴ = 136331207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136331193 and 136331202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136331203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172836 + ... + 173622.

It is an arithmetic number, because the mean of its divisors is an integer number (6647568).

Almost surely, 2^136331223 is an apocalyptic number.

136331223 is a deficient number, since it is larger than the sum of its proper divisors (76390953).

136331223 is a wasteful number, since it uses less digits than its factorization.

136331223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983.

The product of its digits is 1944, while the sum is 24.

The square root of 136331223 is about 11676.0962226251. The cubic root of 136331223 is about 514.6734637858.

Adding to 136331223 its reverse (322133631), we get a palindrome (458464854).

The spelling of 136331223 in words is "one hundred thirty-six million, three hundred thirty-one thousand, two hundred twenty-three".