1019089 has 4 divisors (see below), whose sum is σ = 1054260. Its totient is φ = 983920.

The previous prime is 1019077. The next prime is 1019093. The reversal of 1019089 is 9809101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9809101 = 223 ⋅43987.

It can be written as a sum of positive squares in 2 ways, for example, as 478864 + 540225 = 692^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1019089 - 2¹¹ = 1017041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1019059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17542 + ... + 17599.

It is an arithmetic number, because the mean of its divisors is an integer number (263565).

2^1019089 is an apocalyptic number.

It is an amenable number.

1019089 is a deficient number, since it is larger than the sum of its proper divisors (35171).

1019089 is an equidigital number, since it uses as much as digits as its factorization.

1019089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35170.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1019089 is about 1009.4993808814. The cubic root of 1019089 is about 100.6322936215.

The spelling of 1019089 in words is "one million, nineteen thousand, eighty-nine".