136252243 has 2 divisors, whose sum is σ = 136252244. Its totient is φ = 136252242.

The previous prime is 136252213. The next prime is 136252271. The reversal of 136252243 is 342252631.

It is an a-pointer prime, because the next prime (136252271) can be obtained adding 136252243 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136252243 - 2²⁵ = 102697811 is a prime.

It is not a weakly prime, because it can be changed into another prime (136252213) 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, 68126121 + 68126122.

It is an arithmetic number, because the mean of its divisors is an integer number (68126122).

Almost surely, 2^136252243 is an apocalyptic number.

136252243 is a deficient number, since it is larger than the sum of its proper divisors (1).

136252243 is an equidigital number, since it uses as much as digits as its factorization.

136252243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 28.

The square root of 136252243 is about 11672.7136090971. The cubic root of 136252243 is about 514.5740569602.

The spelling of 136252243 in words is "one hundred thirty-six million, two hundred fifty-two thousand, two hundred forty-three".