3223531 has 2 divisors, whose sum is σ = 3223532. Its totient is φ = 3223530.

The previous prime is 3223529. The next prime is 3223537. The reversal of 3223531 is 1353223.

It is a weak prime.

It is an emirp because it is prime and its reverse (1353223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3223531 - 2¹ = 3223529 is a prime.

It is a super-2 number, since 2×3223531² = 20782304215922, which contains 22 as substring.

Together with 3223529, 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 = 3223499 and 3223508.

It is not a weakly prime, because it can be changed into another prime (3223537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611765 + 1611766.

It is an arithmetic number, because the mean of its divisors is an integer number (1611766).

Almost surely, 2^3223531 is an apocalyptic number.

3223531 is a deficient number, since it is larger than the sum of its proper divisors (1).

3223531 is an equidigital number, since it uses as much as digits as its factorization.

3223531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 19.

The square root of 3223531 is about 1795.4194495995. The cubic root of 3223531 is about 147.7215821197.

Adding to 3223531 its reverse (1353223), we get a palindrome (4576754).

The spelling of 3223531 in words is "three million, two hundred twenty-three thousand, five hundred thirty-one".