135146909 has 2 divisors, whose sum is σ = 135146910. Its totient is φ = 135146908.

The previous prime is 135146897. The next prime is 135146917. The reversal of 135146909 is 909641531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120934009 + 14212900 = 10997^2 + 3770^2 .

It is a cyclic number.

It is not a de Polignac number, because 135146909 - 2⁸ = 135146653 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 (135146929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67573454 + 67573455.

It is an arithmetic number, because the mean of its divisors is an integer number (67573455).

Almost surely, 2^135146909 is an apocalyptic number.

It is an amenable number.

135146909 is a deficient number, since it is larger than the sum of its proper divisors (1).

135146909 is an equidigital number, since it uses as much as digits as its factorization.

135146909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 135146909 is about 11625.2702764280. The cubic root of 135146909 is about 513.1787986605.

The spelling of 135146909 in words is "one hundred thirty-five million, one hundred forty-six thousand, nine hundred nine".