1320073 has 8 divisors (see below), whose sum is σ = 1379840. Its totient is φ = 1261440.

The previous prime is 1320061. The next prime is 1320091. The reversal of 1320073 is 3700231.

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

It is a cyclic number.

It is not a de Polignac number, because 1320073 - 2⁹ = 1319561 is a prime.

It is a Duffinian number.

1320073 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1320023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2788 + ... + 3226.

It is an arithmetic number, because the mean of its divisors is an integer number (172480).

2^1320073 is an apocalyptic number.

It is an amenable number.

1320073 is a deficient number, since it is larger than the sum of its proper divisors (59767).

1320073 is an equidigital number, since it uses as much as digits as its factorization.

1320073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 1320073 is about 1148.9442980406. The cubic root of 1320073 is about 109.6981531875.

The spelling of 1320073 in words is "one million, three hundred twenty thousand, seventy-three".