1320117 has 4 divisors (see below), whose sum is σ = 1760160. Its totient is φ = 880076.

The previous prime is 1320113. The next prime is 1320119. The reversal of 1320117 is 7110231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1320117 - 2² = 1320113 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 1320096 and 1320105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220017 + ... + 220022.

It is an arithmetic number, because the mean of its divisors is an integer number (440040).

2^1320117 is an apocalyptic number.

It is an amenable number.

1320117 is a deficient number, since it is larger than the sum of its proper divisors (440043).

1320117 is an equidigital number, since it uses as much as digits as its factorization.

1320117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440042.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 1320117 is about 1148.9634458937. The cubic root of 1320117 is about 109.6993719750.

Adding to 1320117 its reverse (7110231), we get a palindrome (8430348).

The spelling of 1320117 in words is "one million, three hundred twenty thousand, one hundred seventeen".