135125889 has 8 divisors (see below), whose sum is σ = 180257280. Its totient is φ = 90039216.

The previous prime is 135125857. The next prime is 135125923. The reversal of 135125889 is 988521531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135125889 - 2⁵ = 135125857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135125889.

It is not an unprimeable number, because it can be changed into a prime (135125689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3342 + ... + 16775.

It is an arithmetic number, because the mean of its divisors is an integer number (22532160).

Almost surely, 2^135125889 is an apocalyptic number.

It is an amenable number.

135125889 is a deficient number, since it is larger than the sum of its proper divisors (45131391).

135125889 is a wasteful number, since it uses less digits than its factorization.

135125889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22359.

The product of its digits is 86400, while the sum is 42.

The square root of 135125889 is about 11624.3661762696. The cubic root of 135125889 is about 513.1521916205.

The spelling of 135125889 in words is "one hundred thirty-five million, one hundred twenty-five thousand, eight hundred eighty-nine".