1299322 has 4 divisors (see below), whose sum is σ = 1948986. Its totient is φ = 649660.

The previous prime is 1299317. The next prime is 1299323. The reversal of 1299322 is 2239921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2239921 = 83 ⋅26987.

It can be written as a sum of positive squares in only one way, i.e., 657721 + 641601 = 811^2 + 801^2 .

It is not an unprimeable number, because it can be changed into a prime (1299323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324829 + ... + 324832.

2^1299322 is an apocalyptic number.

1299322 is a deficient number, since it is larger than the sum of its proper divisors (649664).

1299322 is an equidigital number, since it uses as much as digits as its factorization.

1299322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649663.

The product of its digits is 1944, while the sum is 28.

The square root of 1299322 is about 1139.8780636542. The cubic root of 1299322 is about 109.1203115612.

The spelling of 1299322 in words is "one million, two hundred ninety-nine thousand, three hundred twenty-two".