1224730849 has 2 divisors, whose sum is σ = 1224730850. Its totient is φ = 1224730848.

The previous prime is 1224730789. The next prime is 1224730853. The reversal of 1224730849 is 9480374221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1220454225 + 4276624 = 34935^2 + 2068^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224730849 - 2¹³ = 1224722657 is a prime.

It is not a weakly prime, because it can be changed into another prime (1224737849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612365424 + 612365425.

It is an arithmetic number, because the mean of its divisors is an integer number (612365425).

Almost surely, 2^1224730849 is an apocalyptic number.

It is an amenable number.

1224730849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224730849 is an equidigital number, since it uses as much as digits as its factorization.

1224730849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1224730849 is about 34996.1547744892. The cubic root of 1224730849 is about 1069.9091106890.

The spelling of 1224730849 in words is "one billion, two hundred twenty-four million, seven hundred thirty thousand, eight hundred forty-nine".