135344399 has 2 divisors, whose sum is σ = 135344400. Its totient is φ = 135344398.

The previous prime is 135344393. The next prime is 135344413. The reversal of 135344399 is 993443531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135344399 - 2¹⁶ = 135278863 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 (135344393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67672199 + 67672200.

It is an arithmetic number, because the mean of its divisors is an integer number (67672200).

Almost surely, 2^135344399 is an apocalyptic number.

135344399 is a deficient number, since it is larger than the sum of its proper divisors (1).

135344399 is an equidigital number, since it uses as much as digits as its factorization.

135344399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 41.

The square root of 135344399 is about 11633.7611716934. The cubic root of 135344399 is about 513.4286461668.

The spelling of 135344399 in words is "one hundred thirty-five million, three hundred forty-four thousand, three hundred ninety-nine".