136268663 has 2 divisors, whose sum is σ = 136268664. Its totient is φ = 136268662.

The previous prime is 136268647. The next prime is 136268681. The reversal of 136268663 is 366862631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136268663 - 2⁴ = 136268647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136268663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136268683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68134331 + 68134332.

It is an arithmetic number, because the mean of its divisors is an integer number (68134332).

Almost surely, 2^136268663 is an apocalyptic number.

136268663 is a deficient number, since it is larger than the sum of its proper divisors (1).

136268663 is an equidigital number, since it uses as much as digits as its factorization.

136268663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 41.

The square root of 136268663 is about 11673.4169376408. The cubic root of 136268663 is about 514.5947268747.

The spelling of 136268663 in words is "one hundred thirty-six million, two hundred sixty-eight thousand, six hundred sixty-three".