136338823 has 2 divisors, whose sum is σ = 136338824. Its totient is φ = 136338822.

The previous prime is 136338809. The next prime is 136338857. The reversal of 136338823 is 328833631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136338823 - 2⁹ = 136338311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136338863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68169411 + 68169412.

It is an arithmetic number, because the mean of its divisors is an integer number (68169412).

Almost surely, 2^136338823 is an apocalyptic number.

136338823 is a deficient number, since it is larger than the sum of its proper divisors (1).

136338823 is an equidigital number, since it uses as much as digits as its factorization.

136338823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The square root of 136338823 is about 11676.4216693300. The cubic root of 136338823 is about 514.6830273707.

It can be divided in two parts, 1363 and 38823, that added together give a triangular number (40186 = T₂₈₃).

The spelling of 136338823 in words is "one hundred thirty-six million, three hundred thirty-eight thousand, eight hundred twenty-three".