43033139 has 2 divisors, whose sum is σ = 43033140. Its totient is φ = 43033138.

The previous prime is 43033097. The next prime is 43033147. The reversal of 43033139 is 93133034.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43033139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43032139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21516569 + 21516570.

It is an arithmetic number, because the mean of its divisors is an integer number (21516570).

Almost surely, 2^43033139 is an apocalyptic number.

43033139 is a deficient number, since it is larger than the sum of its proper divisors (1).

43033139 is an equidigital number, since it uses as much as digits as its factorization.

43033139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 43033139 is about 6559.9648627108. The cubic root of 43033139 is about 350.4297822373.

The spelling of 43033139 in words is "forty-three million, thirty-three thousand, one hundred thirty-nine".