135268943 has 2 divisors, whose sum is σ = 135268944. Its totient is φ = 135268942.

The previous prime is 135268921. The next prime is 135268951. The reversal of 135268943 is 349862531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135268943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135268943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135268993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67634471 + 67634472.

It is an arithmetic number, because the mean of its divisors is an integer number (67634472).

Almost surely, 2^135268943 is an apocalyptic number.

135268943 is a deficient number, since it is larger than the sum of its proper divisors (1).

135268943 is an equidigital number, since it uses as much as digits as its factorization.

135268943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 135268943 is about 11630.5177442795. The cubic root of 135268943 is about 513.3332143794. Note that the first 3 decimals are identical.

The spelling of 135268943 in words is "one hundred thirty-five million, two hundred sixty-eight thousand, nine hundred forty-three".