71227116 has 18 divisors (see below), whose sum is σ = 180046412. Its totient is φ = 23742360.

The previous prime is 71227073. The next prime is 71227139. The reversal of 71227116 is 61172217.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 71227116.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 989230 + ... + 989301.

Almost surely, 2^71227116 is an apocalyptic number.

It is an amenable number.

71227116 is an abundant number, since it is smaller than the sum of its proper divisors (108819296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71227116 is a wasteful number, since it uses less digits than its factorization.

71227116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978541 (or 1978536 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 71227116 is about 8439.6158680357. The cubic root of 71227116 is about 414.5228289192.

The spelling of 71227116 in words is "seventy-one million, two hundred twenty-seven thousand, one hundred sixteen".