1493489 has 2 divisors, whose sum is σ = 1493490. Its totient is φ = 1493488.

The previous prime is 1493483. The next prime is 1493491. The reversal of 1493489 is 9843941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1459264 + 34225 = 1208^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493489 - 2⁴ = 1493473 is a prime.

It is a Sophie Germain prime.

Together with 1493491, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1493483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746744 + 746745.

It is an arithmetic number, because the mean of its divisors is an integer number (746745).

2^1493489 is an apocalyptic number.

It is an amenable number.

1493489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493489 is an equidigital number, since it uses as much as digits as its factorization.

1493489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 1493489 is about 1222.0838760085. The cubic root of 1493489 is about 114.3055565994.

The spelling of 1493489 in words is "one million, four hundred ninety-three thousand, four hundred eighty-nine".