1303229989 has 2 divisors, whose sum is σ = 1303229990. Its totient is φ = 1303229988.

The previous prime is 1303229981. The next prime is 1303230011. The reversal of 1303229989 is 9899223031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 875153889 + 428076100 = 29583^2 + 20690^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303229989 - 2³ = 1303229981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303229981) 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, 651614994 + 651614995.

It is an arithmetic number, because the mean of its divisors is an integer number (651614995).

Almost surely, 2^1303229989 is an apocalyptic number.

It is an amenable number.

1303229989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303229989 is an equidigital number, since it uses as much as digits as its factorization.

1303229989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 1303229989 is about 36100.2768548941. The cubic root of 1303229989 is about 1092.2960295899.

The spelling of 1303229989 in words is "one billion, three hundred three million, two hundred twenty-nine thousand, nine hundred eighty-nine".