1489359049 has 4 divisors (see below), whose sum is σ = 1504713364. Its totient is φ = 1474004736.

The previous prime is 1489359041. The next prime is 1489359073. The reversal of 1489359049 is 9409539841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 751856400 + 737502649 = 27420^2 + 27157^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489359049 - 2³ = 1489359041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1489358987 and 1489359005.

It is not an unprimeable number, because it can be changed into a prime (1489359041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7677012 + ... + 7677205.

It is an arithmetic number, because the mean of its divisors is an integer number (376178341).

Almost surely, 2^1489359049 is an apocalyptic number.

It is an amenable number.

1489359049 is a deficient number, since it is larger than the sum of its proper divisors (15354315).

1489359049 is an equidigital number, since it uses as much as digits as its factorization.

1489359049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15354314.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 1489359049 is about 38592.2148755419. The cubic root of 1489359049 is about 1142.0009612791. Note that the first 3 decimals are identical.

The spelling of 1489359049 in words is "one billion, four hundred eighty-nine million, three hundred fifty-nine thousand, forty-nine".