136255643 has 2 divisors, whose sum is σ = 136255644. Its totient is φ = 136255642.

The previous prime is 136255627. The next prime is 136255673. The reversal of 136255643 is 346552631.

It is a weak prime.

It is an emirp because it is prime and its reverse (346552631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136255643 - 2⁴ = 136255627 is a prime.

It is not a weakly prime, because it can be changed into another prime (136255673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68127821 + 68127822.

It is an arithmetic number, because the mean of its divisors is an integer number (68127822).

Almost surely, 2^136255643 is an apocalyptic number.

136255643 is a deficient number, since it is larger than the sum of its proper divisors (1).

136255643 is an equidigital number, since it uses as much as digits as its factorization.

136255643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 35.

The square root of 136255643 is about 11672.8592469883. The cubic root of 136255643 is about 514.5783371032.

The spelling of 136255643 in words is "one hundred thirty-six million, two hundred fifty-five thousand, six hundred forty-three".