136263739 has 2 divisors, whose sum is σ = 136263740. Its totient is φ = 136263738.

The previous prime is 136263733. The next prime is 136263773. The reversal of 136263739 is 937362631.

136263739 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 136263739 - 2³ = 136263731 is a prime.

It is not a weakly prime, because it can be changed into another prime (136263731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68131869 + 68131870.

It is an arithmetic number, because the mean of its divisors is an integer number (68131870).

Almost surely, 2^136263739 is an apocalyptic number.

136263739 is a deficient number, since it is larger than the sum of its proper divisors (1).

136263739 is an equidigital number, since it uses as much as digits as its factorization.

136263739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 40.

The square root of 136263739 is about 11673.2060291935. The cubic root of 136263739 is about 514.5885285923.

The spelling of 136263739 in words is "one hundred thirty-six million, two hundred sixty-three thousand, seven hundred thirty-nine".