135705428 has 36 divisors (see below), whose sum is σ = 252698880. Its totient is φ = 63743856.

The previous prime is 135705397. The next prime is 135705431. The reversal of 135705428 is 824507531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124301 + ... + 125387.

Almost surely, 2^135705428 is an apocalyptic number.

It is an amenable number.

135705428 is a deficient number, since it is larger than the sum of its proper divisors (116993452).

135705428 is a wasteful number, since it uses less digits than its factorization.

135705428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 135705428 is about 11649.2672730949. The cubic root of 135705428 is about 513.8847617223.

The spelling of 135705428 in words is "one hundred thirty-five million, seven hundred five thousand, four hundred twenty-eight".