135288099 has 12 divisors (see below), whose sum is σ = 197613000. Its totient is φ = 89178144.

The previous prime is 135288089. The next prime is 135288119. The reversal of 135288099 is 990882531.

It is a happy number.

It is not a de Polignac number, because 135288099 - 2²³ = 126899491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135288029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83649 + ... + 85250.

It is an arithmetic number, because the mean of its divisors is an integer number (16467750).

Almost surely, 2^135288099 is an apocalyptic number.

135288099 is a deficient number, since it is larger than the sum of its proper divisors (62324901).

135288099 is a wasteful number, since it uses less digits than its factorization.

135288099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168994 (or 168991 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 135288099 is about 11631.3412382236. The cubic root of 135288099 is about 513.3574449891.

The spelling of 135288099 in words is "one hundred thirty-five million, two hundred eighty-eight thousand, ninety-nine".