1322999999 has 2 divisors, whose sum is σ = 1323000000. Its totient is φ = 1322999998.

The previous prime is 1322999987. The next prime is 1323000037. The reversal of 1322999999 is 9999992231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1322999999 - 2⁴ = 1322999983 is a prime.

1322999999 is a modest number, since divided by 99999 gives 13229 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322999969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661499999 + 661500000.

It is an arithmetic number, because the mean of its divisors is an integer number (661500000).

Almost surely, 2^1322999999 is an apocalyptic number.

1322999999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322999999 is an equidigital number, since it uses as much as digits as its factorization.

1322999999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6377292, while the sum is 62.

The square root of 1322999999 is about 36373.0669452000. The cubic root of 1322999999 is about 1097.7917127303.

The spelling of 1322999999 in words is "one billion, three hundred twenty-two million, nine hundred ninety-nine thousand, nine hundred ninety-nine".