136248263 has 2 divisors, whose sum is σ = 136248264. Its totient is φ = 136248262.

The previous prime is 136248257. The next prime is 136248271. The reversal of 136248263 is 362842631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136248263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136248163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68124131 + 68124132.

It is an arithmetic number, because the mean of its divisors is an integer number (68124132).

Almost surely, 2^136248263 is an apocalyptic number.

136248263 is a deficient number, since it is larger than the sum of its proper divisors (1).

136248263 is an equidigital number, since it uses as much as digits as its factorization.

136248263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 136248263 is about 11672.5431247865. The cubic root of 136248263 is about 514.5690465848.

The spelling of 136248263 in words is "one hundred thirty-six million, two hundred forty-eight thousand, two hundred sixty-three".