71256271 has 8 divisors (see below), whose sum is σ = 72382464. Its totient is φ = 70139160.

The previous prime is 71256257. The next prime is 71256301. The reversal of 71256271 is 17265217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71256271 - 2¹¹ = 71254223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71256071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14496 + ... + 18778.

It is an arithmetic number, because the mean of its divisors is an integer number (9047808).

Almost surely, 2^71256271 is an apocalyptic number.

71256271 is a deficient number, since it is larger than the sum of its proper divisors (1126193).

71256271 is a wasteful number, since it uses less digits than its factorization.

71256271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541.

The product of its digits is 5880, while the sum is 31.

The square root of 71256271 is about 8441.3429618752. The cubic root of 71256271 is about 414.5793793135.

The spelling of 71256271 in words is "seventy-one million, two hundred fifty-six thousand, two hundred seventy-one".