1090055 has 8 divisors (see below), whose sum is σ = 1314144. Its totient is φ = 868000.

The previous prime is 1090031. The next prime is 1090097. The reversal of 1090055 is 5500901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1090055 - 2⁸ = 1089799 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205 + ... + 1905.

It is an arithmetic number, because the mean of its divisors is an integer number (164268).

2^1090055 is an apocalyptic number.

1090055 is a deficient number, since it is larger than the sum of its proper divisors (224089).

1090055 is an equidigital number, since it uses as much as digits as its factorization.

1090055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 1090055 is about 1044.0569907816. The cubic root of 1090055 is about 102.9159776016.

Adding to 1090055 its reverse (5500901), we get a palindrome (6590956).

The spelling of 1090055 in words is "one million, ninety thousand, fifty-five".