1320055 has 8 divisors (see below), whose sum is σ = 1728144. Its totient is φ = 960000.

The previous prime is 1320037. The next prime is 1320061. The reversal of 1320055 is 5500231.

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

It is not a de Polignac number, because 1320055 - 2⁵ = 1320023 is a prime.

1320055 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11946 + ... + 12055.

It is an arithmetic number, because the mean of its divisors is an integer number (216018).

2^1320055 is an apocalyptic number.

1320055 is a deficient number, since it is larger than the sum of its proper divisors (408089).

1320055 is a wasteful number, since it uses less digits than its factorization.

1320055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24017.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 1320055 is about 1148.9364647360. The cubic root of 1320055 is about 109.6976545849.

Adding to 1320055 its reverse (5500231), we get a palindrome (6820286).

The spelling of 1320055 in words is "one million, three hundred twenty thousand, fifty-five".