43115441 has 2 divisors, whose sum is σ = 43115442. Its totient is φ = 43115440.

The previous prime is 43115411. The next prime is 43115453. The reversal of 43115441 is 14451134.

43115441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31528225 + 11587216 = 5615^2 + 3404^2 .

It is a cyclic number.

It is not a de Polignac number, because 43115441 - 2⁶ = 43115377 is a prime.

It is a super-3 number, since 3×43115441³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (43115411) 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 as a sum of consecutive naturals, namely, 21557720 + 21557721.

It is an arithmetic number, because the mean of its divisors is an integer number (21557721).

Almost surely, 2^43115441 is an apocalyptic number.

It is an amenable number.

43115441 is a deficient number, since it is larger than the sum of its proper divisors (1).

43115441 is an equidigital number, since it uses as much as digits as its factorization.

43115441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 43115441 is about 6566.2349181247. The cubic root of 43115441 is about 350.6530419985.

Adding to 43115441 its reverse (14451134), we get a palindrome (57566575).

The spelling of 43115441 in words is "forty-three million, one hundred fifteen thousand, four hundred forty-one".