1320607 has 2 divisors, whose sum is σ = 1320608. Its totient is φ = 1320606.

The previous prime is 1320541. The next prime is 1320617. The reversal of 1320607 is 7060231.

It is a strong prime.

It is an emirp because it is prime and its reverse (7060231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320607 is a prime.

It is a Chen prime.

1320607 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320617) 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 as a sum of consecutive naturals, namely, 660303 + 660304.

It is an arithmetic number, because the mean of its divisors is an integer number (660304).

2^1320607 is an apocalyptic number.

1320607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320607 is an equidigital number, since it uses as much as digits as its factorization.

1320607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 1320607 is about 1149.1766617888. The cubic root of 1320607 is about 109.7129430052.

Adding to 1320607 its reverse (7060231), we get a palindrome (8380838).

The spelling of 1320607 in words is "one million, three hundred twenty thousand, six hundred seven".