135018889 has 8 divisors (see below), whose sum is σ = 136572800. Its totient is φ = 133469856.

The previous prime is 135018847. The next prime is 135018893. The reversal of 135018889 is 988810531.

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

It is a cyclic number.

It is not a de Polignac number, because 135018889 - 2⁷ = 135018761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135018899) 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, 95812 + ... + 97210.

It is an arithmetic number, because the mean of its divisors is an integer number (17071600).

Almost surely, 2^135018889 is an apocalyptic number.

It is an amenable number.

135018889 is a deficient number, since it is larger than the sum of its proper divisors (1553911).

135018889 is a wasteful number, since it uses less digits than its factorization.

135018889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 69120, while the sum is 43.

The square root of 135018889 is about 11619.7628633290. The cubic root of 135018889 is about 513.0167086173.

The spelling of 135018889 in words is "one hundred thirty-five million, eighteen thousand, eight hundred eighty-nine".