1298469929 has 2 divisors, whose sum is σ = 1298469930. Its totient is φ = 1298469928.

The previous prime is 1298469919. The next prime is 1298469961. The reversal of 1298469929 is 9299648921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1074069529 + 224400400 = 32773^2 + 14980^2 .

It is a cyclic number.

It is not a de Polignac number, because 1298469929 - 2²⁰ = 1297421353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1298469919) 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, 649234964 + 649234965.

It is an arithmetic number, because the mean of its divisors is an integer number (649234965).

Almost surely, 2^1298469929 is an apocalyptic number.

It is an amenable number.

1298469929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298469929 is an equidigital number, since it uses as much as digits as its factorization.

1298469929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5038848, while the sum is 59.

The square root of 1298469929 is about 36034.2882405078. The cubic root of 1298469929 is about 1090.9645332721.

The spelling of 1298469929 in words is "one billion, two hundred ninety-eight million, four hundred sixty-nine thousand, nine hundred twenty-nine".