12445331 has 2 divisors, whose sum is σ = 12445332. Its totient is φ = 12445330.

The previous prime is 12445319. The next prime is 12445339. The reversal of 12445331 is 13354421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12445331 - 2⁶ = 12445267 is a prime.

It is a super-2 number, since 2×12445331² = 309772527399122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12445297 and 12445306.

It is not a weakly prime, because it can be changed into another prime (12445339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222665 + 6222666.

It is an arithmetic number, because the mean of its divisors is an integer number (6222666).

Almost surely, 2^12445331 is an apocalyptic number.

12445331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445331 is an equidigital number, since it uses as much as digits as its factorization.

12445331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 12445331 is about 3527.7940699536. The cubic root of 12445331 is about 231.7406125476.

Adding to 12445331 its reverse (13354421), we get a palindrome (25799752).

The spelling of 12445331 in words is "twelve million, four hundred forty-five thousand, three hundred thirty-one".