135069688 has 16 divisors (see below), whose sum is σ = 272737080. Its totient is φ = 62339808.

The previous prime is 135069679. The next prime is 135069713. The reversal of 135069688 is 886960531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649270 + ... + 649477.

Almost surely, 2^135069688 is an apocalyptic number.

It is an amenable number.

135069688 is an abundant number, since it is smaller than the sum of its proper divisors (137667392).

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

135069688 is a wasteful number, since it uses less digits than its factorization.

135069688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298766 (or 1298762 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 135069688 is about 11621.9485457474. The cubic root of 135069688 is about 513.0810390438.

The spelling of 135069688 in words is "one hundred thirty-five million, sixty-nine thousand, six hundred eighty-eight".