135869788 has 6 divisors (see below), whose sum is σ = 237772136. Its totient is φ = 67934892.

The previous prime is 135869759. The next prime is 135869821. The reversal of 135869788 is 887968531.

135869788 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16983720 + ... + 16983727.

Almost surely, 2^135869788 is an apocalyptic number.

It is an amenable number.

135869788 is a deficient number, since it is larger than the sum of its proper divisors (101902348).

135869788 is a wasteful number, since it uses less digits than its factorization.

135869788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33967451 (or 33967449 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 55.

The square root of 135869788 is about 11656.3196593093. The cubic root of 135869788 is about 514.0921423329.

The spelling of 135869788 in words is "one hundred thirty-five million, eight hundred sixty-nine thousand, seven hundred eighty-eight".