43161133 has 8 divisors (see below), whose sum is σ = 45888768. Its totient is φ = 40504464.

The previous prime is 43161119. The next prime is 43161149. The reversal of 43161133 is 33116134.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43161133 - 2⁵ = 43161101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43161533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16485 + ... + 18922.

It is an arithmetic number, because the mean of its divisors is an integer number (5736096).

Almost surely, 2^43161133 is an apocalyptic number.

It is an amenable number.

43161133 is a deficient number, since it is larger than the sum of its proper divisors (2727635).

43161133 is a wasteful number, since it uses less digits than its factorization.

43161133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35483.

The product of its digits is 648, while the sum is 22.

The square root of 43161133 is about 6569.7133118577. The cubic root of 43161133 is about 350.7768675694.

Adding to 43161133 its reverse (33116134), we get a palindrome (76277267).

The spelling of 43161133 in words is "forty-three million, one hundred sixty-one thousand, one hundred thirty-three".