71885041 has 2 divisors, whose sum is σ = 71885042. Its totient is φ = 71885040.

The previous prime is 71885029. The next prime is 71885057. The reversal of 71885041 is 14058817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62094400 + 9790641 = 7880^2 + 3129^2 .

It is an emirp because it is prime and its reverse (14058817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71885041 - 2¹⁵ = 71852273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71884988 and 71885006.

It is not a weakly prime, because it can be changed into another prime (71885081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35942520 + 35942521.

It is an arithmetic number, because the mean of its divisors is an integer number (35942521).

Almost surely, 2^71885041 is an apocalyptic number.

It is an amenable number.

71885041 is a deficient number, since it is larger than the sum of its proper divisors (1).

71885041 is an equidigital number, since it uses as much as digits as its factorization.

71885041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 71885041 is about 8478.5046440985. The cubic root of 71885041 is about 415.7952352257.

The spelling of 71885041 in words is "seventy-one million, eight hundred eighty-five thousand, forty-one".