135423589 has 8 divisors (see below), whose sum is σ = 158953088. Its totient is φ = 112939920.

The previous prime is 135423577. The next prime is 135423601. The reversal of 135423589 is 985324531.

It is an interprime number because it is at equal distance from previous prime (135423577) and next prime (135423601).

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 135423589 - 2⁷ = 135423461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135423539) 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 7 ways as a sum of consecutive naturals, for example, 261177 + ... + 261694.

It is an arithmetic number, because the mean of its divisors is an integer number (19869136).

Almost surely, 2^135423589 is an apocalyptic number.

It is an amenable number.

135423589 is a deficient number, since it is larger than the sum of its proper divisors (23529499).

135423589 is an equidigital number, since it uses as much as digits as its factorization.

135423589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522915.

The product of its digits is 129600, while the sum is 40.

The square root of 135423589 is about 11637.1641304916. The cubic root of 135423589 is about 513.5287623337.

The spelling of 135423589 in words is "one hundred thirty-five million, four hundred twenty-three thousand, five hundred eighty-nine".