1091297 has 8 divisors (see below), whose sum is σ = 1145760. Its totient is φ = 1038240.

The previous prime is 1091287. The next prime is 1091329. The reversal of 1091297 is 7921901.

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 1091297 - 2¹⁰ = 1090273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1091257) 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, 1454 + ... + 2072.

It is an arithmetic number, because the mean of its divisors is an integer number (143220).

2^1091297 is an apocalyptic number.

It is an amenable number.

1091297 is a deficient number, since it is larger than the sum of its proper divisors (54463).

1091297 is an equidigital number, since it uses as much as digits as its factorization.

1091297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 1091297 is about 1044.6516165689. The cubic root of 1091297 is about 102.9550499813.

The spelling of 1091297 in words is "one million, ninety-one thousand, two hundred ninety-seven".