135040443 has 16 divisors (see below), whose sum is σ = 189050880. Its totient is φ = 85621536.

The previous prime is 135040441. The next prime is 135040453. The reversal of 135040443 is 344040531.

It is not a de Polignac number, because 135040443 - 2¹ = 135040441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135040441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5755 + ... + 17412.

It is an arithmetic number, because the mean of its divisors is an integer number (11815680).

Almost surely, 2^135040443 is an apocalyptic number.

135040443 is a deficient number, since it is larger than the sum of its proper divisors (54010437).

135040443 is a wasteful number, since it uses less digits than its factorization.

135040443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23266.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 135040443 is about 11620.6902979126. The cubic root of 135040443 is about 513.0440059678.

Adding to 135040443 its reverse (344040531), we get a palindrome (479080974).

The spelling of 135040443 in words is "one hundred thirty-five million, forty thousand, four hundred forty-three".