1229445307 has 4 divisors (see below), whose sum is σ = 1229575536. Its totient is φ = 1229315080.

The previous prime is 1229445299. The next prime is 1229445313. The reversal of 1229445307 is 7035449221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7035449221 = 78511 ⋅89611.

It is a cyclic number.

It is not a de Polignac number, because 1229445307 - 2³ = 1229445299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1229445367) 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 in 3 ways as a sum of consecutive naturals, for example, 49744 + ... + 70237.

It is an arithmetic number, because the mean of its divisors is an integer number (307393884).

Almost surely, 2^1229445307 is an apocalyptic number.

1229445307 is a deficient number, since it is larger than the sum of its proper divisors (130229).

1229445307 is a wasteful number, since it uses less digits than its factorization.

1229445307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130228.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1229445307 is about 35063.4468784802. The cubic root of 1229445307 is about 1071.2801828791.

The spelling of 1229445307 in words is "one billion, two hundred twenty-nine million, four hundred forty-five thousand, three hundred seven".