12245731 has 2 divisors, whose sum is σ = 12245732. Its totient is φ = 12245730.

The previous prime is 12245719. The next prime is 12245741. The reversal of 12245731 is 13754221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12245731 - 2⁷ = 12245603 is a prime.

It is a super-3 number, since 3×12245731³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 12245696 and 12245705.

It is not a weakly prime, because it can be changed into another prime (12245741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6122865 + 6122866.

It is an arithmetic number, because the mean of its divisors is an integer number (6122866).

Almost surely, 2^12245731 is an apocalyptic number.

12245731 is a deficient number, since it is larger than the sum of its proper divisors (1).

12245731 is an equidigital number, since it uses as much as digits as its factorization.

12245731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 12245731 is about 3499.3900897156. The cubic root of 12245731 is about 230.4950333250.

Adding to 12245731 its reverse (13754221), we get a palindrome (25999952).

The spelling of 12245731 in words is "twelve million, two hundred forty-five thousand, seven hundred thirty-one".