1329112489 has 2 divisors, whose sum is σ = 1329112490. Its totient is φ = 1329112488.

The previous prime is 1329112471. The next prime is 1329112493. The reversal of 1329112489 is 9842119231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 998054464 + 331058025 = 31592^2 + 18195^2 .

It is a cyclic number.

It is not a de Polignac number, because 1329112489 - 2⁷ = 1329112361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1329112439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664556244 + 664556245.

It is an arithmetic number, because the mean of its divisors is an integer number (664556245).

Almost surely, 2^1329112489 is an apocalyptic number.

It is an amenable number.

1329112489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329112489 is an equidigital number, since it uses as much as digits as its factorization.

1329112489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 1329112489 is about 36456.9950626762. The cubic root of 1329112489 is about 1099.4797785291.

The spelling of 1329112489 in words is "one billion, three hundred twenty-nine million, one hundred twelve thousand, four hundred eighty-nine".