71013043 has 2 divisors, whose sum is σ = 71013044. Its totient is φ = 71013042.

The previous prime is 71013031. The next prime is 71013053. The reversal of 71013043 is 34031017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71013043 - 2⁹ = 71012531 is a prime.

It is a super-2 number, since 2×71013043² = 10085704552239698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71013043.

It is not a weakly prime, because it can be changed into another prime (71013023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35506521 + 35506522.

It is an arithmetic number, because the mean of its divisors is an integer number (35506522).

Almost surely, 2^71013043 is an apocalyptic number.

71013043 is a deficient number, since it is larger than the sum of its proper divisors (1).

71013043 is an equidigital number, since it uses as much as digits as its factorization.

71013043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 71013043 is about 8426.9236972931. The cubic root of 71013043 is about 414.1071295803.

The spelling of 71013043 in words is "seventy-one million, thirteen thousand, forty-three".