1224694423 has 2 divisors, whose sum is σ = 1224694424. Its totient is φ = 1224694422.

The previous prime is 1224694421. The next prime is 1224694439. The reversal of 1224694423 is 3244964221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1224694423 - 2¹ = 1224694421 is a prime.

Together with 1224694421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224694421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612347211 + 612347212.

It is an arithmetic number, because the mean of its divisors is an integer number (612347212).

Almost surely, 2^1224694423 is an apocalyptic number.

1224694423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224694423 is an equidigital number, since it uses as much as digits as its factorization.

1224694423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The square root of 1224694423 is about 34995.6343420147. The cubic root of 1224694423 is about 1069.8985034888.

The spelling of 1224694423 in words is "one billion, two hundred twenty-four million, six hundred ninety-four thousand, four hundred twenty-three".