45909943 has 2 divisors, whose sum is σ = 45909944. Its totient is φ = 45909942.

The previous prime is 45909917. The next prime is 45909971. The reversal of 45909943 is 34990954.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45909943 - 2⁹ = 45909431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45909943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45909443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22954971 + 22954972.

It is an arithmetic number, because the mean of its divisors is an integer number (22954972).

Almost surely, 2^45909943 is an apocalyptic number.

45909943 is a deficient number, since it is larger than the sum of its proper divisors (1).

45909943 is an equidigital number, since it uses as much as digits as its factorization.

45909943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 45909943 is about 6775.6876403801. The cubic root of 45909943 is about 358.0708093137.

The spelling of 45909943 in words is "forty-five million, nine hundred nine thousand, nine hundred forty-three".