9945043 has 2 divisors, whose sum is σ = 9945044. Its totient is φ = 9945042.

The previous prime is 9944953. The next prime is 9945049. The reversal of 9945043 is 3405499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9945043 - 2⁹ = 9944531 is a prime.

It is not a weakly prime, because it can be changed into another prime (9945049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4972521 + 4972522.

It is an arithmetic number, because the mean of its divisors is an integer number (4972522).

Almost surely, 2^9945043 is an apocalyptic number.

9945043 is a deficient number, since it is larger than the sum of its proper divisors (1).

9945043 is an equidigital number, since it uses as much as digits as its factorization.

9945043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 9945043 is about 3153.5762239083. The cubic root of 9945043 is about 215.0480728992.

It can be divided in two parts, 99450 and 43, that multiplied together give a triangular number (4276350 = T₂₉₂₄).

The spelling of 9945043 in words is "nine million, nine hundred forty-five thousand, forty-three".