135989634 has 16 divisors (see below), whose sum is σ = 296704800. Its totient is φ = 41208960.

The previous prime is 135989629. The next prime is 135989657. The reversal of 135989634 is 436989531.

135989634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030159 + ... + 1030290.

It is an arithmetic number, because the mean of its divisors is an integer number (18544050).

Almost surely, 2^135989634 is an apocalyptic number.

135989634 is an abundant number, since it is smaller than the sum of its proper divisors (160715166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135989634 is a wasteful number, since it uses less digits than its factorization.

135989634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060465.

The product of its digits is 699840, while the sum is 48.

The square root of 135989634 is about 11661.4593426380. The cubic root of 135989634 is about 514.2432521600.

It can be divided in two parts, 13598 and 9634, that added together give a palindrome (23232).

The spelling of 135989634 in words is "one hundred thirty-five million, nine hundred eighty-nine thousand, six hundred thirty-four".