1121953 has 8 divisors (see below), whose sum is σ = 1308800. Its totient is φ = 961380.

The previous prime is 1121947. The next prime is 1121987. The reversal of 1121953 is 3591211.

It is not a de Polignac number, because 1121953 - 2¹⁷ = 990881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121933) 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, 1293 + ... + 1978.

It is an arithmetic number, because the mean of its divisors is an integer number (163600).

2^1121953 is an apocalyptic number.

It is an amenable number.

1121953 is a deficient number, since it is larger than the sum of its proper divisors (186847).

1121953 is an frugal number, since it uses more digits than its factorization.

1121953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292 (or 3278 counting only the distinct ones).

The product of its digits is 270, while the sum is 22.

The square root of 1121953 is about 1059.2228283038. Note that the first 3 decimals coincide. The cubic root of 1121953 is about 103.9102097291.

The spelling of 1121953 in words is "one million, one hundred twenty-one thousand, nine hundred fifty-three".