71271164 has 6 divisors (see below), whose sum is σ = 124724544. Its totient is φ = 35635580.

The previous prime is 71271163. The next prime is 71271197. The reversal of 71271164 is 46117217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71271163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8908892 + ... + 8908899.

It is an arithmetic number, because the mean of its divisors is an integer number (20787424).

Almost surely, 2^71271164 is an apocalyptic number.

It is an amenable number.

71271164 is a deficient number, since it is larger than the sum of its proper divisors (53453380).

71271164 is a wasteful number, since it uses less digits than its factorization.

71271164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17817795 (or 17817793 counting only the distinct ones).

The product of its digits is 2352, while the sum is 29.

The square root of 71271164 is about 8442.2250621504. The cubic root of 71271164 is about 414.6082605170.

The spelling of 71271164 in words is "seventy-one million, two hundred seventy-one thousand, one hundred sixty-four".