1489540999 has 2 divisors, whose sum is σ = 1489541000. Its totient is φ = 1489540998.

The previous prime is 1489540981. The next prime is 1489541017. The reversal of 1489540999 is 9990459841.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1489540981) and next prime (1489541017).

It is an emirp because it is prime and its reverse (9990459841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1489540999 - 2¹¹ = 1489538951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1489540909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744770499 + 744770500.

It is an arithmetic number, because the mean of its divisors is an integer number (744770500).

Almost surely, 2^1489540999 is an apocalyptic number.

1489540999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1489540999 is an equidigital number, since it uses as much as digits as its factorization.

1489540999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 58.

The square root of 1489540999 is about 38594.5721442796. The cubic root of 1489540999 is about 1142.0474641946.

The spelling of 1489540999 in words is "one billion, four hundred eighty-nine million, five hundred forty thousand, nine hundred ninety-nine".