43213135 has 16 divisors (see below), whose sum is σ = 59844096. Its totient is φ = 29341728.

The previous prime is 43213109. The next prime is 43213141. The reversal of 43213135 is 53131234.

43213135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 43213135 - 2¹⁵ = 43180367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2389 + ... + 9598.

It is an arithmetic number, because the mean of its divisors is an integer number (3740256).

Almost surely, 2^43213135 is an apocalyptic number.

43213135 is a deficient number, since it is larger than the sum of its proper divisors (16630961).

43213135 is a wasteful number, since it uses less digits than its factorization.

43213135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12102.

The product of its digits is 1080, while the sum is 22.

The square root of 43213135 is about 6573.6698274252. The cubic root of 43213135 is about 350.9176869940.

Adding to 43213135 its reverse (53131234), we get a palindrome (96344369).

The spelling of 43213135 in words is "forty-three million, two hundred thirteen thousand, one hundred thirty-five".