43045939 has 2 divisors, whose sum is σ = 43045940. Its totient is φ = 43045938.

The previous prime is 43045927. The next prime is 43045943. The reversal of 43045939 is 93954034.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43045939 - 2⁵ = 43045907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43045898 and 43045907.

It is not a weakly prime, because it can be changed into another prime (43045909) 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, 21522969 + 21522970.

It is an arithmetic number, because the mean of its divisors is an integer number (21522970).

Almost surely, 2^43045939 is an apocalyptic number.

43045939 is a deficient number, since it is larger than the sum of its proper divisors (1).

43045939 is an equidigital number, since it uses as much as digits as its factorization.

43045939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 43045939 is about 6560.9404051553. The cubic root of 43045939 is about 350.4645233435.

The spelling of 43045939 in words is "forty-three million, forty-five thousand, nine hundred thirty-nine".