136943263 has 2 divisors, whose sum is σ = 136943264. Its totient is φ = 136943262.

The previous prime is 136943207. The next prime is 136943281. The reversal of 136943263 is 362349631.

136943263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136943263 is a prime.

It is equal to p_7749208 and since 136943263 and 7749208 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136943293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68471631 + 68471632.

It is an arithmetic number, because the mean of its divisors is an integer number (68471632).

Almost surely, 2^136943263 is an apocalyptic number.

136943263 is a deficient number, since it is larger than the sum of its proper divisors (1).

136943263 is an equidigital number, since it uses as much as digits as its factorization.

136943263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 37.

The square root of 136943263 is about 11702.2759752110. The cubic root of 136943263 is about 515.4424990028.

The spelling of 136943263 in words is "one hundred thirty-six million, nine hundred forty-three thousand, two hundred sixty-three".