7243231 has 8 divisors (see below), whose sum is σ = 7490864. Its totient is φ = 6998400.

The previous prime is 7243213. The next prime is 7243259. The reversal of 7243231 is 1323427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 7-Lehmer number, since φ(7243231) divides (7243231-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 7243231 - 2¹¹ = 7241183 is a prime.

It is a super-2 number, since 2×7243231² = 104928790638722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7243261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5431 + ... + 6631.

It is an arithmetic number, because the mean of its divisors is an integer number (936358).

Almost surely, 2^7243231 is an apocalyptic number.

7243231 is a deficient number, since it is larger than the sum of its proper divisors (247633).

7243231 is a wasteful number, since it uses less digits than its factorization.

7243231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401.

The product of its digits is 1008, while the sum is 22.

The square root of 7243231 is about 2691.3251382915. The cubic root of 7243231 is about 193.4835788757.

Adding to 7243231 its reverse (1323427), we get a palindrome (8566658).

The spelling of 7243231 in words is "seven million, two hundred forty-three thousand, two hundred thirty-one".