71003039 has 2 divisors, whose sum is σ = 71003040. Its totient is φ = 71003038.

The previous prime is 71003027. The next prime is 71003059. The reversal of 71003039 is 93030017.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71003039 - 2¹² = 70998943 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71003059) 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, 35501519 + 35501520.

It is an arithmetic number, because the mean of its divisors is an integer number (35501520).

Almost surely, 2^71003039 is an apocalyptic number.

71003039 is a deficient number, since it is larger than the sum of its proper divisors (1).

71003039 is an equidigital number, since it uses as much as digits as its factorization.

71003039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 71003039 is about 8426.3301027197. The cubic root of 71003039 is about 414.0876828135.

The spelling of 71003039 in words is "seventy-one million, three thousand, thirty-nine".