135811412 has 48 divisors (see below), whose sum is σ = 274724352. Its totient is φ = 58138080.

The previous prime is 135811397. The next prime is 135811441. The reversal of 135811412 is 214118531.

135811412 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 in 15 ways as a sum of consecutive naturals, for example, 66803 + ... + 68805.

It is an arithmetic number, because the mean of its divisors is an integer number (5723424).

Almost surely, 2^135811412 is an apocalyptic number.

It is an amenable number.

135811412 is an abundant number, since it is smaller than the sum of its proper divisors (138912940).

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

135811412 is a wasteful number, since it uses less digits than its factorization.

135811412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108 (or 2106 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 135811412 is about 11653.8153409087. The cubic root of 135811412 is about 514.0185057961.

Adding to 135811412 its reverse (214118531), we get a palindrome (349929943).

The spelling of 135811412 in words is "one hundred thirty-five million, eight hundred eleven thousand, four hundred twelve".