1245112667 has 2 divisors, whose sum is σ = 1245112668. Its totient is φ = 1245112666.

The previous prime is 1245112639. The next prime is 1245112679. The reversal of 1245112667 is 7662115421.

It is a strong prime.

It is an emirp because it is prime and its reverse (7662115421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1245112667 - 2¹⁰ = 1245111643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245112637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622556333 + 622556334.

It is an arithmetic number, because the mean of its divisors is an integer number (622556334).

Almost surely, 2^1245112667 is an apocalyptic number.

1245112667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245112667 is an equidigital number, since it uses as much as digits as its factorization.

1245112667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 1245112667 is about 35286.1540409266. The cubic root of 1245112667 is about 1075.8115860101.

The spelling of 1245112667 in words is "one billion, two hundred forty-five million, one hundred twelve thousand, six hundred sixty-seven".