711231 has 8 divisors (see below), whose sum is σ = 952320. Its totient is φ = 472152.

The previous prime is 711223. The next prime is 711259. The reversal of 711231 is 132117.

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

It is not a de Polignac number, because 711231 - 2³ = 711223 is a prime.

It is a super-2 number, since 2×711231² = 1011699070722, which contains 22 as substring.

It is an Ulam number.

711231 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 711231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711131) 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 7 ways as a sum of consecutive naturals, for example, 840 + ... + 1458.

It is an arithmetic number, because the mean of its divisors is an integer number (119040).

2⁷¹¹²³¹ is an apocalyptic number.

711231 is a deficient number, since it is larger than the sum of its proper divisors (241089).

711231 is a wasteful number, since it uses less digits than its factorization.

711231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005.

The product of its digits is 42, while the sum is 15.

The square root of 711231 is about 843.3451250823. The cubic root of 711231 is about 89.2627424940.

Adding to 711231 its reverse (132117), we get a palindrome (843348).

The spelling of 711231 in words is "seven hundred eleven thousand, two hundred thirty-one".