135880889 has 4 divisors (see below), whose sum is σ = 135920256. Its totient is φ = 135841524.

The previous prime is 135880873. The next prime is 135880897. The reversal of 135880889 is 988088531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 988088531 = 199 ⋅4965269.

It is a cyclic number.

It is not a de Polignac number, because 135880889 - 2⁴ = 135880873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135880859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13949 + ... + 21594.

It is an arithmetic number, because the mean of its divisors is an integer number (33980064).

Almost surely, 2^135880889 is an apocalyptic number.

It is an amenable number.

135880889 is a deficient number, since it is larger than the sum of its proper divisors (39367).

135880889 is an equidigital number, since it uses as much as digits as its factorization.

135880889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39366.

The product of its (nonzero) digits is 552960, while the sum is 50.

The square root of 135880889 is about 11656.7958290432. The cubic root of 135880889 is about 514.1061429471.

The spelling of 135880889 in words is "one hundred thirty-five million, eight hundred eighty thousand, eight hundred eighty-nine".