135231199 has 2 divisors, whose sum is σ = 135231200. Its totient is φ = 135231198.

The previous prime is 135231179. The next prime is 135231211. The reversal of 135231199 is 991132531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135231199 - 2⁷ = 135231071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135231149) 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, 67615599 + 67615600.

It is an arithmetic number, because the mean of its divisors is an integer number (67615600).

Almost surely, 2^135231199 is an apocalyptic number.

135231199 is a deficient number, since it is larger than the sum of its proper divisors (1).

135231199 is an equidigital number, since it uses as much as digits as its factorization.

135231199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 34.

The square root of 135231199 is about 11628.8950033956. The cubic root of 135231199 is about 513.2854649335.

The spelling of 135231199 in words is "one hundred thirty-five million, two hundred thirty-one thousand, one hundred ninety-nine".