12240667 has 2 divisors, whose sum is σ = 12240668. Its totient is φ = 12240666.

The previous prime is 12240659. The next prime is 12240677. The reversal of 12240667 is 76604221.

It is a weak prime.

It is an emirp because it is prime and its reverse (76604221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12240667 - 2³ = 12240659 is a prime.

It is not a weakly prime, because it can be changed into another prime (12240607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120333 + 6120334.

It is an arithmetic number, because the mean of its divisors is an integer number (6120334).

Almost surely, 2^12240667 is an apocalyptic number.

12240667 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240667 is an equidigital number, since it uses as much as digits as its factorization.

12240667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 12240667 is about 3498.6664602388. Note that the first 3 decimals coincide. The cubic root of 12240667 is about 230.4632565972.

Adding to 12240667 its reverse (76604221), we get a palindrome (88844888).

The spelling of 12240667 in words is "twelve million, two hundred forty thousand, six hundred sixty-seven".