135775389 has 4 divisors (see below), whose sum is σ = 181033856. Its totient is φ = 90516924.

The previous prime is 135775373. The next prime is 135775397. The reversal of 135775389 is 983577531.

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.

It is not a de Polignac number, because 135775389 - 2⁴ = 135775373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135775369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22629229 + ... + 22629234.

It is an arithmetic number, because the mean of its divisors is an integer number (45258464).

Almost surely, 2^135775389 is an apocalyptic number.

It is an amenable number.

135775389 is a deficient number, since it is larger than the sum of its proper divisors (45258467).

135775389 is an equidigital number, since it uses as much as digits as its factorization.

135775389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45258466.

The product of its digits is 793800, while the sum is 48.

The square root of 135775389 is about 11652.2696930684. The cubic root of 135775389 is about 513.9730552071.

The spelling of 135775389 in words is "one hundred thirty-five million, seven hundred seventy-five thousand, three hundred eighty-nine".