731140227 has 6 divisors (see below), whose sum is σ = 1056091452. Its totient is φ = 487426812.

The previous prime is 731140219. The next prime is 731140229. The reversal of 731140227 is 722041137.

It is a happy number.

It is not a de Polignac number, because 731140227 - 2³ = 731140219 is a prime.

It is a super-2 number, since 2×731140227² = 1069132063075223058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 731140227.

It is not an unprimeable number, because it can be changed into a prime (731140229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40618893 + ... + 40618910.

It is an arithmetic number, because the mean of its divisors is an integer number (176015242).

Almost surely, 2^731140227 is an apocalyptic number.

731140227 is a deficient number, since it is larger than the sum of its proper divisors (324951225).

731140227 is a wasteful number, since it uses less digits than its factorization.

731140227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81237809 (or 81237806 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 731140227 is about 27039.6047863130. The cubic root of 731140227 is about 900.8798913395.

The spelling of 731140227 in words is "seven hundred thirty-one million, one hundred forty thousand, two hundred twenty-seven".