43204131 has 8 divisors (see below), whose sum is σ = 64006160. Its totient is φ = 28802736.

The previous prime is 43204129. The next prime is 43204151. The reversal of 43204131 is 13140234.

43204131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43204131 - 2¹ = 43204129 is a prime.

It is a super-2 number, since 2×43204131² = 3733193870930322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43204151) 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 7 ways as a sum of consecutive naturals, for example, 800050 + ... + 800103.

It is an arithmetic number, because the mean of its divisors is an integer number (8000770).

Almost surely, 2^43204131 is an apocalyptic number.

43204131 is a deficient number, since it is larger than the sum of its proper divisors (20802029).

43204131 is a wasteful number, since it uses less digits than its factorization.

43204131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600162 (or 1600156 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 43204131 is about 6572.9849383670. The cubic root of 43204131 is about 350.8933125969.

Adding to 43204131 its reverse (13140234), we get a palindrome (56344365).

The spelling of 43204131 in words is "forty-three million, two hundred four thousand, one hundred thirty-one".