1163231 has 2 divisors, whose sum is σ = 1163232. Its totient is φ = 1163230.

The previous prime is 1163221. The next prime is 1163233. The reversal of 1163231 is 1323611.

It is a strong prime.

It is an emirp because it is prime and its reverse (1323611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1163231 - 2⁶ = 1163167 is a prime.

It is a super-2 number, since 2×1163231² = 2706212718722, which contains 22 as substring.

Together with 1163233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581615 + 581616.

It is an arithmetic number, because the mean of its divisors is an integer number (581616).

2^1163231 is an apocalyptic number.

1163231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163231 is an equidigital number, since it uses as much as digits as its factorization.

1163231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 17.

The square root of 1163231 is about 1078.5318725008. The cubic root of 1163231 is about 105.1692207082.

Adding to 1163231 its reverse (1323611), we get a palindrome (2486842).

The spelling of 1163231 in words is "one million, one hundred sixty-three thousand, two hundred thirty-one".