135159569 has 16 divisors (see below), whose sum is σ = 144399360. Its totient is φ = 126236880.

The previous prime is 135159527. The next prime is 135159581. The reversal of 135159569 is 965951531.

It is not a de Polignac number, because 135159569 - 2⁸ = 135159313 is a prime.

It is a super-2 number, since 2×135159569² = 36536218184531522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135159769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213884 + ... + 214514.

It is an arithmetic number, because the mean of its divisors is an integer number (9024960).

Almost surely, 2^135159569 is an apocalyptic number.

It is an amenable number.

135159569 is a deficient number, since it is larger than the sum of its proper divisors (9239791).

135159569 is a wasteful number, since it uses less digits than its factorization.

135159569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860.

The product of its digits is 182250, while the sum is 44.

The square root of 135159569 is about 11625.8147671464. The cubic root of 135159569 is about 513.1948223116.

The spelling of 135159569 in words is "one hundred thirty-five million, one hundred fifty-nine thousand, five hundred sixty-nine".