1296970669 has 2 divisors, whose sum is σ = 1296970670. Its totient is φ = 1296970668.

The previous prime is 1296970663. The next prime is 1296970693. The reversal of 1296970669 is 9660796921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938625769 + 358344900 = 30637^2 + 18930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1296970669 - 2¹⁷ = 1296839597 is a prime.

It is a super-2 number, since 2×1296970669² = 3364265832492615122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1296970663) 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 as a sum of consecutive naturals, namely, 648485334 + 648485335.

It is an arithmetic number, because the mean of its divisors is an integer number (648485335).

Almost surely, 2^1296970669 is an apocalyptic number.

It is an amenable number.

1296970669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296970669 is an equidigital number, since it uses as much as digits as its factorization.

1296970669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The square root of 1296970669 is about 36013.4789905113. The cubic root of 1296970669 is about 1090.5444826221.

It can be divided in two parts, 12969 and 70669, that added together give a palindrome (83638).

The spelling of 1296970669 in words is "one billion, two hundred ninety-six million, nine hundred seventy thousand, six hundred sixty-nine".