1333231 has 2 divisors, whose sum is σ = 1333232.
Its totient is φ = 1333230.
The previous prime is 1333219. The next prime is 1333253. The reversal of 1333231 is 1323331.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1333231 - 29 = 1332719 is a prime.
It is a super-2 number, since 2×13332312 = 3555009798722, which contains 22 as substring.
1333231 is a lucky number.
It is a plaindrome in base 16.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1333261) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666615 + 666616.
It is an arithmetic number, because the mean of its divisors is an integer number (666616).
21333231 is an apocalyptic number.
1333231 is a deficient number, since it is larger than the sum of its proper divisors (1).
1333231 is an equidigital number, since it uses as much as digits as its factorization.
1333231 is an evil number, because the sum of its binary digits is even.
The product of its digits is 162, while the sum is 16.
The square root of 1333231 is about 1154.6562258958.
The cubic root of 1333231 is about 110.0614257476.
Adding to 1333231 its reverse (1323331), we get a palindrome (2656562).
It can be divided in two parts, 133 and 3231, that added together give a square (3364 = 582).
The spelling of 1333231 in words is "one million, three hundred thirty-three thousand, two hundred thirty-one".