71017241 has 4 divisors (see below), whose sum is σ = 71720484. Its totient is φ = 70314000.

The previous prime is 71017229. The next prime is 71017267. The reversal of 71017241 is 14271017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43507216 + 27510025 = 6596^2 + 5245^2 .

It is a cyclic number.

It is not a de Polignac number, because 71017241 - 2¹⁰ = 71016217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71017841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351470 + ... + 351671.

It is an arithmetic number, because the mean of its divisors is an integer number (17930121).

Almost surely, 2^71017241 is an apocalyptic number.

It is an amenable number.

71017241 is a deficient number, since it is larger than the sum of its proper divisors (703243).

71017241 is a wasteful number, since it uses less digits than its factorization.

71017241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703242.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 71017241 is about 8427.1727762044. The cubic root of 71017241 is about 414.1152895249.

Adding to 71017241 its reverse (14271017), we get a palindrome (85288258).

The spelling of 71017241 in words is "seventy-one million, seventeen thousand, two hundred forty-one".