1296969229 has 4 divisors (see below), whose sum is σ = 1297041984. Its totient is φ = 1296896476.

The previous prime is 1296969187. The next prime is 1296969257. The reversal of 1296969229 is 9229696921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1296969229 - 2¹⁵ = 1296936461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1296969229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296969629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10494 + ... + 52000.

It is an arithmetic number, because the mean of its divisors is an integer number (324260496).

Almost surely, 2^1296969229 is an apocalyptic number.

It is an amenable number.

1296969229 is a deficient number, since it is larger than the sum of its proper divisors (72755).

1296969229 is an equidigital number, since it uses as much as digits as its factorization.

1296969229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72754.

The product of its digits is 1889568, while the sum is 55.

The square root of 1296969229 is about 36013.4589979913. The cubic root of 1296969229 is about 1090.5440790189.

The spelling of 1296969229 in words is "one billion, two hundred ninety-six million, nine hundred sixty-nine thousand, two hundred twenty-nine".