1121975 has 6 divisors (see below), whose sum is σ = 1391280. Its totient is φ = 897560.

The previous prime is 1121947. The next prime is 1121987. The reversal of 1121975 is 5791211.

It is a de Polignac number, because none of the positive numbers 2^k-1121975 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22415 + ... + 22464.

It is an arithmetic number, because the mean of its divisors is an integer number (231880).

2^1121975 is an apocalyptic number.

1121975 is a deficient number, since it is larger than the sum of its proper divisors (269305).

1121975 is an equidigital number, since it uses as much as digits as its factorization.

1121975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44889 (or 44884 counting only the distinct ones).

The product of its digits is 630, while the sum is 26.

The square root of 1121975 is about 1059.2332132255. The cubic root of 1121975 is about 103.9108889048.

The spelling of 1121975 in words is "one million, one hundred twenty-one thousand, nine hundred seventy-five".