135579369 has 16 divisors (see below), whose sum is σ = 191771712. Its totient is φ = 84907008.

The previous prime is 135579347. The next prime is 135579371. The reversal of 135579369 is 963975531.

It is not a de Polignac number, because 135579369 - 2²³ = 127190761 is a prime.

It is a super-2 number, since 2×135579369² = 36763530596876322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135579329) 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, 28002 + ... + 32484.

It is an arithmetic number, because the mean of its divisors is an integer number (11985732).

Almost surely, 2^135579369 is an apocalyptic number.

It is an amenable number.

135579369 is a deficient number, since it is larger than the sum of its proper divisors (56192343).

135579369 is a wasteful number, since it uses less digits than its factorization.

135579369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5096.

The product of its digits is 765450, while the sum is 48.

The square root of 135579369 is about 11643.8554182023. The cubic root of 135579369 is about 513.7255937636.

The spelling of 135579369 in words is "one hundred thirty-five million, five hundred seventy-nine thousand, three hundred sixty-nine".