1304231 has 2 divisors, whose sum is σ = 1304232. Its totient is φ = 1304230.

The previous prime is 1304227. The next prime is 1304239. The reversal of 1304231 is 1324031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1304231 - 2² = 1304227 is a prime.

It is a super-2 number, since 2×1304231² = 3402037002722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304239) 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 as a sum of consecutive naturals, namely, 652115 + 652116.

It is an arithmetic number, because the mean of its divisors is an integer number (652116).

2^1304231 is an apocalyptic number.

1304231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304231 is an equidigital number, since it uses as much as digits as its factorization.

1304231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1304231 is about 1142.0293341241. The cubic root of 1304231 is about 109.2575622223.

Adding to 1304231 its reverse (1324031), we get a palindrome (2628262).

The spelling of 1304231 in words is "one million, three hundred four thousand, two hundred thirty-one".