135768212 has 6 divisors (see below), whose sum is σ = 237594378. Its totient is φ = 67884104.

The previous prime is 135768209. The next prime is 135768253. The reversal of 135768212 is 212867531.

It is a happy number.

135768212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 99720196 + 36048016 = 9986^2 + 6004^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 16971023 + ... + 16971030.

It is an arithmetic number, because the mean of its divisors is an integer number (39599063).

Almost surely, 2^135768212 is an apocalyptic number.

It is an amenable number.

135768212 is a deficient number, since it is larger than the sum of its proper divisors (101826166).

135768212 is a wasteful number, since it uses less digits than its factorization.

135768212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33942057 (or 33942055 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 135768212 is about 11651.9617232464. The cubic root of 135768212 is about 513.9639989522.

The spelling of 135768212 in words is "one hundred thirty-five million, seven hundred sixty-eight thousand, two hundred twelve".