7243531 has 2 divisors, whose sum is σ = 7243532. Its totient is φ = 7243530.

The previous prime is 7243529. The next prime is 7243549. The reversal of 7243531 is 1353427.

7243531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7243531 - 2¹ = 7243529 is a prime.

It is a super-2 number, since 2×7243531² = 104937482695922, which contains 22 as substring.

Together with 7243529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7243496 and 7243505.

It is not a weakly prime, because it can be changed into another prime (7243631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621765 + 3621766.

It is an arithmetic number, because the mean of its divisors is an integer number (3621766).

Almost surely, 2^7243531 is an apocalyptic number.

7243531 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243531 is an equidigital number, since it uses as much as digits as its factorization.

7243531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 25.

The square root of 7243531 is about 2691.3808723404. The cubic root of 7243531 is about 193.4862500718.

Adding to 7243531 its reverse (1353427), we get a palindrome (8596958).

The spelling of 7243531 in words is "seven million, two hundred forty-three thousand, five hundred thirty-one".