71004143 has 8 divisors (see below), whose sum is σ = 81486240. Its totient is φ = 60606720.

The previous prime is 71004139. The next prime is 71004161. The reversal of 71004143 is 34140017.

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 71004143 - 2² = 71004139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71004103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19358 + ... + 22731.

It is an arithmetic number, because the mean of its divisors is an integer number (10185780).

Almost surely, 2^71004143 is an apocalyptic number.

71004143 is a deficient number, since it is larger than the sum of its proper divisors (10482097).

71004143 is a wasteful number, since it uses less digits than its factorization.

71004143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42337.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 71004143 is about 8426.3956114106. The cubic root of 71004143 is about 414.0898289678.

The spelling of 71004143 in words is "seventy-one million, four thousand, one hundred forty-three".