1224759947 has 2 divisors, whose sum is σ = 1224759948. Its totient is φ = 1224759946.

The previous prime is 1224759889. The next prime is 1224759961. The reversal of 1224759947 is 7499574221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7499574221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224759947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224759895 and 1224759904.

It is not a weakly prime, because it can be changed into another prime (1224759967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612379973 + 612379974.

It is an arithmetic number, because the mean of its divisors is an integer number (612379974).

Almost surely, 2^1224759947 is an apocalyptic number.

1224759947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224759947 is an equidigital number, since it uses as much as digits as its factorization.

1224759947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 50.

The square root of 1224759947 is about 34996.5705034079. The cubic root of 1224759947 is about 1069.9175838347.

The spelling of 1224759947 in words is "one billion, two hundred twenty-four million, seven hundred fifty-nine thousand, nine hundred forty-seven".