1089518 has 4 divisors (see below), whose sum is σ = 1634280. Its totient is φ = 544758.

The previous prime is 1089509. The next prime is 1089523. The reversal of 1089518 is 8159801.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272378 + ... + 272381.

It is an arithmetic number, because the mean of its divisors is an integer number (408570).

2^1089518 is an apocalyptic number.

1089518 is a deficient number, since it is larger than the sum of its proper divisors (544762).

1089518 is an equidigital number, since it uses as much as digits as its factorization.

1089518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544761.

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

The square root of 1089518 is about 1043.7997892316. The cubic root of 1089518 is about 102.8990747977.

The spelling of 1089518 in words is "one million, eighty-nine thousand, five hundred eighteen".