43132231 has 2 divisors, whose sum is σ = 43132232. Its totient is φ = 43132230.

The previous prime is 43132217. The next prime is 43132241. The reversal of 43132231 is 13223134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43132231 - 2¹¹ = 43130183 is a prime.

It is a super-2 number, since 2×43132231² = 3720778702074722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43132199 and 43132208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43132211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21566115 + 21566116.

It is an arithmetic number, because the mean of its divisors is an integer number (21566116).

Almost surely, 2^43132231 is an apocalyptic number.

43132231 is a deficient number, since it is larger than the sum of its proper divisors (1).

43132231 is an equidigital number, since it uses as much as digits as its factorization.

43132231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 19.

The square root of 43132231 is about 6567.5133041357. The cubic root of 43132231 is about 350.6985531532.

Adding to 43132231 its reverse (13223134), we get a palindrome (56355365).

The spelling of 43132231 in words is "forty-three million, one hundred thirty-two thousand, two hundred thirty-one".