71250041 has 2 divisors, whose sum is σ = 71250042. Its totient is φ = 71250040.

The previous prime is 71250037. The next prime is 71250083. The reversal of 71250041 is 14005217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37945600 + 33304441 = 6160^2 + 5771^2 .

It is an emirp because it is prime and its reverse (14005217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71250041 - 2² = 71250037 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71249995 and 71250022.

It is not a weakly prime, because it can be changed into another prime (71250031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35625020 + 35625021.

It is an arithmetic number, because the mean of its divisors is an integer number (35625021).

Almost surely, 2^71250041 is an apocalyptic number.

It is an amenable number.

71250041 is a deficient number, since it is larger than the sum of its proper divisors (1).

71250041 is an equidigital number, since it uses as much as digits as its factorization.

71250041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 71250041 is about 8440.9739366971. The cubic root of 71250041 is about 414.5672966118.

Adding to 71250041 its reverse (14005217), we get a palindrome (85255258).

The spelling of 71250041 in words is "seventy-one million, two hundred fifty thousand, forty-one".