1331297 has 8 divisors (see below), whose sum is σ = 1492032. Its totient is φ = 1177200.

The previous prime is 1331293. The next prime is 1331299. The reversal of 1331297 is 7921331.

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 1331297 - 2² = 1331293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331293) 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, 1229 + ... + 2042.

It is an arithmetic number, because the mean of its divisors is an integer number (186504).

2^1331297 is an apocalyptic number.

It is an amenable number.

1331297 is a deficient number, since it is larger than the sum of its proper divisors (160735).

1331297 is a wasteful number, since it uses less digits than its factorization.

1331297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319.

The product of its digits is 1134, while the sum is 26.

The square root of 1331297 is about 1153.8184432570. The cubic root of 1331297 is about 110.0081812097.

The spelling of 1331297 in words is "one million, three hundred thirty-one thousand, two hundred ninety-seven".