1320914489 has 2 divisors, whose sum is σ = 1320914490. Its totient is φ = 1320914488.

The previous prime is 1320914477. The next prime is 1320914509. The reversal of 1320914489 is 9844190231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 871135225 + 449779264 = 29515^2 + 21208^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320914489 - 2⁴ = 1320914473 is a prime.

It is a super-2 number, since 2×1320914489² = 3489630174500262242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1320911489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660457244 + 660457245.

It is an arithmetic number, because the mean of its divisors is an integer number (660457245).

Almost surely, 2^1320914489 is an apocalyptic number.

It is an amenable number.

1320914489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320914489 is an equidigital number, since it uses as much as digits as its factorization.

1320914489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1320914489 is about 36344.3873108352. The cubic root of 1320914489 is about 1097.2145750016.

The spelling of 1320914489 in words is "one billion, three hundred twenty million, nine hundred fourteen thousand, four hundred eighty-nine".