1518089 has 2 divisors, whose sum is σ = 1518090. Its totient is φ = 1518088.

The previous prime is 1518071. The next prime is 1518091. The reversal of 1518089 is 9808151.

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., 1247689 + 270400 = 1117^2 + 520^2 .

It is an emirp because it is prime and its reverse (9808151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1518089 - 2¹⁶ = 1452553 is a prime.

Together with 1518091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1518589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 759044 + 759045.

It is an arithmetic number, because the mean of its divisors is an integer number (759045).

2^1518089 is an apocalyptic number.

It is an amenable number.

1518089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1518089 is an equidigital number, since it uses as much as digits as its factorization.

1518089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1518089 is about 1232.1075440074. The cubic root of 1518089 is about 114.9297365368.

The spelling of 1518089 in words is "one million, five hundred eighteen thousand, eighty-nine".