136267643 has 2 divisors, whose sum is σ = 136267644. Its totient is φ = 136267642.

The previous prime is 136267627. The next prime is 136267667. The reversal of 136267643 is 346762631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136267643 - 2⁴ = 136267627 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 136267597 and 136267606.

It is not a weakly prime, because it can be changed into another prime (136267693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68133821 + 68133822.

It is an arithmetic number, because the mean of its divisors is an integer number (68133822).

Almost surely, 2^136267643 is an apocalyptic number.

136267643 is a deficient number, since it is larger than the sum of its proper divisors (1).

136267643 is an equidigital number, since it uses as much as digits as its factorization.

136267643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 38.

The square root of 136267643 is about 11673.3732485516. The cubic root of 136267643 is about 514.5934429211.

The spelling of 136267643 in words is "one hundred thirty-six million, two hundred sixty-seven thousand, six hundred forty-three".