136693388 has 48 divisors (see below), whose sum is σ = 266429856. Its totient is φ = 60963840.

The previous prime is 136693369. The next prime is 136693397. The reversal of 136693388 is 883396631.

It is a super-3 number, since 3×136693388³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 252398 + ... + 252938.

It is an arithmetic number, because the mean of its divisors is an integer number (5550622).

Almost surely, 2^136693388 is an apocalyptic number.

It is an amenable number.

136693388 is a deficient number, since it is larger than the sum of its proper divisors (129736468).

136693388 is a wasteful number, since it uses less digits than its factorization.

136693388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 712 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 136693388 is about 11691.5947586290. The cubic root of 136693388 is about 515.1288055613.

The spelling of 136693388 in words is "one hundred thirty-six million, six hundred ninety-three thousand, three hundred eighty-eight".