71365085 has 32 divisors (see below), whose sum is σ = 97822080. Its totient is φ = 49504000.

The previous prime is 71365057. The next prime is 71365097. The reversal of 71365085 is 58056317.

It is not a de Polignac number, because 71365085 - 2⁸ = 71364829 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 160874 + ... + 161316.

It is an arithmetic number, because the mean of its divisors is an integer number (3056940).

Almost surely, 2^71365085 is an apocalyptic number.

It is an amenable number.

71365085 is a deficient number, since it is larger than the sum of its proper divisors (26456995).

71365085 is a wasteful number, since it uses less digits than its factorization.

71365085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 71365085 is about 8447.7858045763. The cubic root of 71365085 is about 414.7903038922.

It can be divided in two parts, 7136 and 5085, that added together give a palindrome (12221).

The spelling of 71365085 in words is "seventy-one million, three hundred sixty-five thousand, eighty-five".