43260641 has 2 divisors, whose sum is σ = 43260642. Its totient is φ = 43260640.

The previous prime is 43260611. The next prime is 43260643. The reversal of 43260641 is 14606234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25654225 + 17606416 = 5065^2 + 4196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43260641 is a prime.

Together with 43260643, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2619350 and since 43260641 and 2619350 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43260641.

It is not a weakly prime, because it can be changed into another prime (43260643) 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, 21630320 + 21630321.

It is an arithmetic number, because the mean of its divisors is an integer number (21630321).

Almost surely, 2^43260641 is an apocalyptic number.

It is an amenable number.

43260641 is a deficient number, since it is larger than the sum of its proper divisors (1).

43260641 is an equidigital number, since it uses as much as digits as its factorization.

43260641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 43260641 is about 6577.2821894761. The cubic root of 43260641 is about 351.0462327123.

Adding to 43260641 its reverse (14606234), we get a palindrome (57866875).

The spelling of 43260641 in words is "forty-three million, two hundred sixty thousand, six hundred forty-one".