7271254217 has 2 divisors, whose sum is σ = 7271254218. Its totient is φ = 7271254216.

The previous prime is 7271254213. The next prime is 7271254253. The reversal of 7271254217 is 7124521727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6956227216 + 315027001 = 83404^2 + 17749^2 .

It is a cyclic number.

It is not a de Polignac number, because 7271254217 - 2² = 7271254213 is a prime.

It is a super-2 number, since 2×7271254217² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7271254213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3635627108 + 3635627109.

It is an arithmetic number, because the mean of its divisors is an integer number (3635627109).

Almost surely, 2^7271254217 is an apocalyptic number.

It is an amenable number.

7271254217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7271254217 is an equidigital number, since it uses as much as digits as its factorization.

7271254217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54880, while the sum is 38.

The square root of 7271254217 is about 85271.6495501289. The cubic root of 7271254217 is about 1937.3277958473.

The spelling of 7271254217 in words is "seven billion, two hundred seventy-one million, two hundred fifty-four thousand, two hundred seventeen".