1320907 has 4 divisors (see below), whose sum is σ = 1509616. Its totient is φ = 1132200.

The previous prime is 1320901. The next prime is 1320911. The reversal of 1320907 is 7090231.

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

It is a cyclic number.

It is not a de Polignac number, because 1320907 - 2¹¹ = 1318859 is a prime.

It is a Duffinian number.

1320907 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1320901) 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, 94344 + ... + 94357.

It is an arithmetic number, because the mean of its divisors is an integer number (377404).

2^1320907 is an apocalyptic number.

1320907 is a deficient number, since it is larger than the sum of its proper divisors (188709).

1320907 is an equidigital number, since it uses as much as digits as its factorization.

1320907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188708.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1320907 is about 1149.3071826105. The cubic root of 1320907 is about 109.7212501424.

The spelling of 1320907 in words is "one million, three hundred twenty thousand, nine hundred seven".