135566235 has 48 divisors (see below), whose sum is σ = 282696960. Its totient is φ = 58708800.

The previous prime is 135566219. The next prime is 135566239. The reversal of 135566235 is 532665531.

135566235 is a `hidden beast` number, since 13 + 556 + 62 + 35 = 666.

It is not a de Polignac number, because 135566235 - 2⁴ = 135566219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135566235.

It is not an unprimeable number, because it can be changed into a prime (135566239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5341 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (5889520).

Almost surely, 2^135566235 is an apocalyptic number.

135566235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135566235 is an abundant number, since it is smaller than the sum of its proper divisors (147130725).

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

135566235 is a wasteful number, since it uses less digits than its factorization.

135566235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22688 (or 22685 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 135566235 is about 11643.2914160902. The cubic root of 135566235 is about 513.7090044898.

It can be divided in two parts, 13556 and 6235, that added together give a palindrome (19791).

The spelling of 135566235 in words is "one hundred thirty-five million, five hundred sixty-six thousand, two hundred thirty-five".