71020118 has 32 divisors (see below), whose sum is σ = 124467840. Its totient is φ = 30090240.

The previous prime is 71020091. The next prime is 71020121. The reversal of 71020118 is 81102017.

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 71020118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16163 + ... + 20081.

It is an arithmetic number, because the mean of its divisors is an integer number (3889620).

Almost surely, 2^71020118 is an apocalyptic number.

71020118 is a deficient number, since it is larger than the sum of its proper divisors (53447722).

71020118 is a wasteful number, since it uses less digits than its factorization.

71020118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 71020118 is about 8427.3434722930. The cubic root of 71020118 is about 414.1208815641.

The spelling of 71020118 in words is "seventy-one million, twenty thousand, one hundred eighteen".