1320613 has 8 divisors (see below), whose sum is σ = 1528128. Its totient is φ = 1117824.

The previous prime is 1320607. The next prime is 1320617. The reversal of 1320613 is 3160231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556 + ... + 1717.

It is an arithmetic number, because the mean of its divisors is an integer number (191016).

2^1320613 is an apocalyptic number.

It is an amenable number.

1320613 is a deficient number, since it is larger than the sum of its proper divisors (207515).

1320613 is an equidigital number, since it uses as much as digits as its factorization.

1320613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1320613 is about 1149.1792723505. The cubic root of 1320613 is about 109.7131091602.

Adding to 1320613 its reverse (3160231), we get a palindrome (4480844).

The spelling of 1320613 in words is "one million, three hundred twenty thousand, six hundred thirteen".