43648133 has 2 divisors, whose sum is σ = 43648134. Its totient is φ = 43648132.

The previous prime is 43648127. The next prime is 43648151. The reversal of 43648133 is 33184634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43059844 + 588289 = 6562^2 + 767^2 .

It is a cyclic number.

It is not a de Polignac number, because 43648133 - 2⁴ = 43648117 is a prime.

It is equal to p_2641397 and since 43648133 and 2641397 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 43648133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43648153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21824066 + 21824067.

It is an arithmetic number, because the mean of its divisors is an integer number (21824067).

Almost surely, 2^43648133 is an apocalyptic number.

It is an amenable number.

43648133 is a deficient number, since it is larger than the sum of its proper divisors (1).

43648133 is an equidigital number, since it uses as much as digits as its factorization.

43648133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 43648133 is about 6606.6733686478. The cubic root of 43648133 is about 352.0912432413.

The spelling of 43648133 in words is "forty-three million, six hundred forty-eight thousand, one hundred thirty-three".