135783812 has 12 divisors (see below), whose sum is σ = 247953216. Its totient is φ = 64940040.

The previous prime is 135783803. The next prime is 135783853. The reversal of 135783812 is 218387531.

It is a happy 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, 737864 + ... + 738047.

It is an arithmetic number, because the mean of its divisors is an integer number (20662768).

Almost surely, 2^135783812 is an apocalyptic number.

It is an amenable number.

135783812 is a deficient number, since it is larger than the sum of its proper divisors (112169404).

135783812 is a wasteful number, since it uses less digits than its factorization.

135783812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475938 (or 1475936 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 135783812 is about 11652.6311191936. The cubic root of 135783812 is about 513.9836833127.

The spelling of 135783812 in words is "one hundred thirty-five million, seven hundred eighty-three thousand, eight hundred twelve".