1121275 has 6 divisors (see below), whose sum is σ = 1390412. Its totient is φ = 897000.

The previous prime is 1121261. The next prime is 1121293. The reversal of 1121275 is 5721211.

It is not a de Polignac number, because 1121275 - 2⁷ = 1121147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22401 + ... + 22450.

2^1121275 is an apocalyptic number.

1121275 is a deficient number, since it is larger than the sum of its proper divisors (269137).

1121275 is an equidigital number, since it uses as much as digits as its factorization.

1121275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44861 (or 44856 counting only the distinct ones).

The product of its digits is 140, while the sum is 19.

The square root of 1121275 is about 1058.9027339657. The cubic root of 1121275 is about 103.8892744141.

Adding to 1121275 its reverse (5721211), we get a palindrome (6842486).

The spelling of 1121275 in words is "one million, one hundred twenty-one thousand, two hundred seventy-five".