136504223 has 2 divisors, whose sum is σ = 136504224. Its totient is φ = 136504222.

The previous prime is 136504219. The next prime is 136504243. The reversal of 136504223 is 322405631.

136504223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136504223 - 2² = 136504219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136504192 and 136504201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136504213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68252111 + 68252112.

It is an arithmetic number, because the mean of its divisors is an integer number (68252112).

Almost surely, 2^136504223 is an apocalyptic number.

136504223 is a deficient number, since it is larger than the sum of its proper divisors (1).

136504223 is an equidigital number, since it uses as much as digits as its factorization.

136504223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 136504223 is about 11683.5021718661. The cubic root of 136504223 is about 514.8910732017.

Adding to 136504223 its reverse (322405631), we get a palindrome (458909854).

The spelling of 136504223 in words is "one hundred thirty-six million, five hundred four thousand, two hundred twenty-three".