1320197 has 8 divisors (see below), whose sum is σ = 1400832. Its totient is φ = 1242000.

The previous prime is 1320191. The next prime is 1320199. The reversal of 1320197 is 7910231.

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 1320197 - 2⁴ = 1320181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320191) 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, 572 + ... + 1722.

It is an arithmetic number, because the mean of its divisors is an integer number (175104).

2^1320197 is an apocalyptic number.

It is an amenable number.

1320197 is a deficient number, since it is larger than the sum of its proper divisors (80635).

1320197 is a wasteful number, since it uses less digits than its factorization.

1320197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1320197 is about 1148.9982593546. The cubic root of 1320197 is about 109.7015878827.

The spelling of 1320197 in words is "one million, three hundred twenty thousand, one hundred ninety-seven".