7442231 has 2 divisors, whose sum is σ = 7442232. Its totient is φ = 7442230.

The previous prime is 7442213. The next prime is 7442233. The reversal of 7442231 is 1322447.

Together with previous prime (7442213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7442231 - 2¹⁸ = 7180087 is a prime.

It is a super-2 number, since 2×7442231² = 110773604514722, which contains 22 as substring.

Together with 7442233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7442197 and 7442206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7442233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3721115 + 3721116.

It is an arithmetic number, because the mean of its divisors is an integer number (3721116).

Almost surely, 2^7442231 is an apocalyptic number.

7442231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7442231 is an equidigital number, since it uses as much as digits as its factorization.

7442231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 23.

The square root of 7442231 is about 2728.0452708854. The cubic root of 7442231 is about 195.2395128373.

Adding to 7442231 its reverse (1322447), we get a palindrome (8764678).

The spelling of 7442231 in words is "seven million, four hundred forty-two thousand, two hundred thirty-one".