1322999969 has 2 divisors, whose sum is σ = 1322999970. Its totient is φ = 1322999968.

The previous prime is 1322999957. The next prime is 1322999983. The reversal of 1322999969 is 9699992231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 970011025 + 352988944 = 31145^2 + 18788^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322999969 - 2¹² = 1322995873 is a prime.

It is a super-2 number, since 2×1322999969² = 3500657835948001922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1322999999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661499984 + 661499985.

It is an arithmetic number, because the mean of its divisors is an integer number (661499985).

Almost surely, 2^1322999969 is an apocalyptic number.

It is an amenable number.

1322999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322999969 is an equidigital number, since it uses as much as digits as its factorization.

1322999969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4251528, while the sum is 59.

The square root of 1322999969 is about 36373.0665328069. The cubic root of 1322999969 is about 1097.7917044326.

The spelling of 1322999969 in words is "one billion, three hundred twenty-two million, nine hundred ninety-nine thousand, nine hundred sixty-nine".