71101085 has 16 divisors (see below), whose sum is σ = 93647232. Its totient is φ = 51393600.

The previous prime is 71101081. The next prime is 71101091. The reversal of 71101085 is 58010117.

It is not a de Polignac number, because 71101085 - 2² = 71101081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71101085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71101081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5315 + ... + 13055.

It is an arithmetic number, because the mean of its divisors is an integer number (5852952).

Almost surely, 2^71101085 is an apocalyptic number.

It is an amenable number.

71101085 is a deficient number, since it is larger than the sum of its proper divisors (22546147).

71101085 is a wasteful number, since it uses less digits than its factorization.

71101085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7924.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 71101085 is about 8432.1459309004. The cubic root of 71101085 is about 414.2781956339.

The spelling of 71101085 in words is "seventy-one million, one hundred one thousand, eighty-five".