1299322225 has 6 divisors (see below), whose sum is σ = 1611159590. Its totient is φ = 1039457760.

The previous prime is 1299322217. The next prime is 1299322247. The reversal of 1299322225 is 5222239921.

It can be written as a sum of positive squares in 3 ways, for example, as 149230656 + 1150091569 = 12216^2 + 33913^2 .

It is not a de Polignac number, because 1299322225 - 2³ = 1299322217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25986420 + ... + 25986469.

Almost surely, 2^1299322225 is an apocalyptic number.

It is an amenable number.

1299322225 is a deficient number, since it is larger than the sum of its proper divisors (311837365).

1299322225 is an equidigital number, since it uses as much as digits as its factorization.

1299322225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51972899 (or 51972894 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 1299322225 is about 36046.1124810984. The cubic root of 1299322225 is about 1091.2031785988.

The spelling of 1299322225 in words is "one billion, two hundred ninety-nine million, three hundred twenty-two thousand, two hundred twenty-five".