43985159 has 2 divisors, whose sum is σ = 43985160. Its totient is φ = 43985158.

The previous prime is 43985147. The next prime is 43985167. The reversal of 43985159 is 95158934.

It is a happy number.

43985159 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 is a cyclic number.

It is not a de Polignac number, because 43985159 - 2⁴ = 43985143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43985129) 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, 21992579 + 21992580.

It is an arithmetic number, because the mean of its divisors is an integer number (21992580).

Almost surely, 2^43985159 is an apocalyptic number.

43985159 is a deficient number, since it is larger than the sum of its proper divisors (1).

43985159 is an equidigital number, since it uses as much as digits as its factorization.

43985159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 44.

The square root of 43985159 is about 6632.1308038970. The cubic root of 43985159 is about 352.9951367209.

It can be divided in two parts, 43985 and 159, that added together give a palindrome (44144).

The spelling of 43985159 in words is "forty-three million, nine hundred eighty-five thousand, one hundred fifty-nine".