135544233 has 16 divisors (see below), whose sum is σ = 207532800. Its totient is φ = 77824080.

The previous prime is 135544177. The next prime is 135544243. The reversal of 135544233 is 332445531.

It is not a de Polignac number, because 135544233 - 2⁹ = 135543721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135544233.

It is not an unprimeable number, because it can be changed into a prime (135544243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107463 + ... + 108716.

It is an arithmetic number, because the mean of its divisors is an integer number (12970800).

Almost surely, 2^135544233 is an apocalyptic number.

It is an amenable number.

135544233 is a deficient number, since it is larger than the sum of its proper divisors (71988567).

135544233 is a wasteful number, since it uses less digits than its factorization.

135544233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216212.

The product of its digits is 21600, while the sum is 30.

The square root of 135544233 is about 11642.3465418274. The cubic root of 135544233 is about 513.6812118342.

Adding to 135544233 its reverse (332445531), we get a palindrome (467989764).

The spelling of 135544233 in words is "one hundred thirty-five million, five hundred forty-four thousand, two hundred thirty-three".