135225791 has 2 divisors, whose sum is σ = 135225792. Its totient is φ = 135225790.

The previous prime is 135225773. The next prime is 135225847. The reversal of 135225791 is 197522531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135225791 - 2²² = 131031487 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 (135225691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67612895 + 67612896.

It is an arithmetic number, because the mean of its divisors is an integer number (67612896).

Almost surely, 2^135225791 is an apocalyptic number.

135225791 is a deficient number, since it is larger than the sum of its proper divisors (1).

135225791 is an equidigital number, since it uses as much as digits as its factorization.

135225791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 35.

The square root of 135225791 is about 11628.6624768285. The cubic root of 135225791 is about 513.2786226150.

The spelling of 135225791 in words is "one hundred thirty-five million, two hundred twenty-five thousand, seven hundred ninety-one".