71019441 has 12 divisors (see below), whose sum is σ = 103178868. Its totient is φ = 47071584.

The previous prime is 71019439. The next prime is 71019451. The reversal of 71019441 is 14491017.

It can be written as a sum of positive squares in 2 ways, for example, as 30569841 + 40449600 = 5529^2 + 6360^2 .

It is not a de Polignac number, because 71019441 - 2¹ = 71019439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71019451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21250 + ... + 24363.

It is an arithmetic number, because the mean of its divisors is an integer number (8598239).

Almost surely, 2^71019441 is an apocalyptic number.

It is an amenable number.

71019441 is a deficient number, since it is larger than the sum of its proper divisors (32159427).

71019441 is a wasteful number, since it uses less digits than its factorization.

71019441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45792 (or 45789 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 71019441 is about 8427.3033053285. The cubic root of 71019441 is about 414.1195656894.

The spelling of 71019441 in words is "seventy-one million, nineteen thousand, four hundred forty-one".