135693789 has 48 divisors (see below), whose sum is σ = 237090816. Its totient is φ = 68191200.

The previous prime is 135693769. The next prime is 135693791. The reversal of 135693789 is 987396531.

It is not a de Polignac number, because 135693789 - 2⁵ = 135693757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135693769) 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 47 ways as a sum of consecutive naturals, for example, 48774 + ... + 51480.

It is an arithmetic number, because the mean of its divisors is an integer number (4939392).

Almost surely, 2^135693789 is an apocalyptic number.

It is an amenable number.

135693789 is a deficient number, since it is larger than the sum of its proper divisors (101397027).

135693789 is a wasteful number, since it uses less digits than its factorization.

135693789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766 (or 2759 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 135693789 is about 11648.7677030663. The cubic root of 135693789 is about 513.8700699107.

The spelling of 135693789 in words is "one hundred thirty-five million, six hundred ninety-three thousand, seven hundred eighty-nine".