71001043 has 8 divisors (see below), whose sum is σ = 74840720. Its totient is φ = 67171680.

The previous prime is 71001037. The next prime is 71001071. The reversal of 71001043 is 34010017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71001043 - 2¹⁷ = 70869971 is a prime.

It is a super-2 number, since 2×71001043² = 10082296214175698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71001143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14533 + ... + 18793.

It is an arithmetic number, because the mean of its divisors is an integer number (9355090).

Almost surely, 2^71001043 is an apocalyptic number.

71001043 is a deficient number, since it is larger than the sum of its proper divisors (3839677).

71001043 is a wasteful number, since it uses less digits than its factorization.

71001043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 71001043 is about 8426.2116636125. The cubic root of 71001043 is about 414.0838025722.

It can be divided in two parts, 7100104 and 3, that multiplied together give a palindrome (21300312).

The spelling of 71001043 in words is "seventy-one million, one thousand, forty-three".