71271092 has 12 divisors (see below), whose sum is σ = 125519940. Its totient is φ = 35408256.

The previous prime is 71271073. The next prime is 71271097. The reversal of 71271092 is 29017217.

It can be written as a sum of positive squares in 2 ways, for example, as 11115556 + 60155536 = 3334^2 + 7756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71271097) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 56117 + ... + 57372.

It is an arithmetic number, because the mean of its divisors is an integer number (10459995).

Almost surely, 2^71271092 is an apocalyptic number.

It is an amenable number.

71271092 is a deficient number, since it is larger than the sum of its proper divisors (54248848).

71271092 is a wasteful number, since it uses less digits than its factorization.

71271092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113650 (or 113648 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 71271092 is about 8442.2207978707. The cubic root of 71271092 is about 414.6081209009.

The spelling of 71271092 in words is "seventy-one million, two hundred seventy-one thousand, ninety-two".