71225273 has 12 divisors (see below), whose sum is σ = 86457600. Its totient is φ = 58394952.

The previous prime is 71225267. The next prime is 71225279. The reversal of 71225273 is 37252217.

It is an interprime number because it is at equal distance from previous prime (71225267) and next prime (71225279).

It is not a de Polignac number, because 71225273 - 2¹⁴ = 71208889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71225279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30473 + ... + 32726.

It is an arithmetic number, because the mean of its divisors is an integer number (7204800).

Almost surely, 2^71225273 is an apocalyptic number.

It is an amenable number.

71225273 is a deficient number, since it is larger than the sum of its proper divisors (15232327).

71225273 is a wasteful number, since it uses less digits than its factorization.

71225273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63236 (or 63229 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 71225273 is about 8439.5066798955. The cubic root of 71225273 is about 414.5192536321.

The spelling of 71225273 in words is "seventy-one million, two hundred twenty-five thousand, two hundred seventy-three".