136236223 has 2 divisors, whose sum is σ = 136236224. Its totient is φ = 136236222.

The previous prime is 136236203. The next prime is 136236253. The reversal of 136236223 is 322632631.

It is a weak prime.

It is an emirp because it is prime and its reverse (322632631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136236223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136236191 and 136236200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136236203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68118111 + 68118112.

It is an arithmetic number, because the mean of its divisors is an integer number (68118112).

Almost surely, 2^136236223 is an apocalyptic number.

136236223 is a deficient number, since it is larger than the sum of its proper divisors (1).

136236223 is an equidigital number, since it uses as much as digits as its factorization.

136236223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 28.

The square root of 136236223 is about 11672.0273731687. The cubic root of 136236223 is about 514.5538889754.

Adding to 136236223 its reverse (322632631), we get a palindrome (458868854).

The spelling of 136236223 in words is "one hundred thirty-six million, two hundred thirty-six thousand, two hundred twenty-three".