1823231 has 2 divisors, whose sum is σ = 1823232. Its totient is φ = 1823230.

The previous prime is 1823219. The next prime is 1823257. The reversal of 1823231 is 1323281.

It is a weak prime.

It is an emirp because it is prime and its reverse (1323281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1823231 - 2¹⁰ = 1822207 is a prime.

It is a super-2 number, since 2×1823231² = 6648342558722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1823281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911615 + 911616.

It is an arithmetic number, because the mean of its divisors is an integer number (911616).

2^1823231 is an apocalyptic number.

1823231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1823231 is an equidigital number, since it uses as much as digits as its factorization.

1823231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 1823231 is about 1350.2707135978. The cubic root of 1823231 is about 122.1651217513.

The spelling of 1823231 in words is "one million, eight hundred twenty-three thousand, two hundred thirty-one".