1320297 has 8 divisors (see below), whose sum is σ = 1920480. Its totient is φ = 800160.

The previous prime is 1320287. The next prime is 1320301. The reversal of 1320297 is 7920231.

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

It is not a de Polignac number, because 1320297 - 2¹⁰ = 1319273 is a prime.

1320297 is a modest number, since divided by 297 gives 132 as remainder.

1320297 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1320247) 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, 19972 + ... + 20037.

It is an arithmetic number, because the mean of its divisors is an integer number (240060).

2^1320297 is an apocalyptic number.

It is an amenable number.

1320297 is a deficient number, since it is larger than the sum of its proper divisors (600183).

1320297 is a wasteful number, since it uses less digits than its factorization.

1320297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40023.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1320297 is about 1149.0417746975. The cubic root of 1320297 is about 109.7043576415.

The spelling of 1320297 in words is "one million, three hundred twenty thousand, two hundred ninety-seven".