135839612 has 6 divisors (see below), whose sum is σ = 237719328. Its totient is φ = 67919804.

The previous prime is 135839611. The next prime is 135839629. The reversal of 135839612 is 216938531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135839611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16979948 + ... + 16979955.

It is an arithmetic number, because the mean of its divisors is an integer number (39619888).

Almost surely, 2^135839612 is an apocalyptic number.

It is an amenable number.

135839612 is a deficient number, since it is larger than the sum of its proper divisors (101879716).

135839612 is a wasteful number, since it uses less digits than its factorization.

135839612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33959907 (or 33959905 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 135839612 is about 11655.0251822980. The cubic root of 135839612 is about 514.0540804175.

The spelling of 135839612 in words is "one hundred thirty-five million, eight hundred thirty-nine thousand, six hundred twelve".