135041609 has 2 divisors, whose sum is σ = 135041610. Its totient is φ = 135041608.

The previous prime is 135041593. The next prime is 135041633. The reversal of 135041609 is 906140531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89775625 + 45265984 = 9475^2 + 6728^2 .

It is a cyclic number.

It is not a de Polignac number, because 135041609 - 2⁴ = 135041593 is a prime.

It is a super-2 number, since 2×135041609² = 36472472322617762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135041909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67520804 + 67520805.

It is an arithmetic number, because the mean of its divisors is an integer number (67520805).

Almost surely, 2^135041609 is an apocalyptic number.

It is an amenable number.

135041609 is a deficient number, since it is larger than the sum of its proper divisors (1).

135041609 is an equidigital number, since it uses as much as digits as its factorization.

135041609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 135041609 is about 11620.7404669410. The cubic root of 135041609 is about 513.0454825812.

The spelling of 135041609 in words is "one hundred thirty-five million, forty-one thousand, six hundred nine".