1123969 has 12 divisors (see below), whose sum is σ = 1412992. Its totient is φ = 875160.

The previous prime is 1123961. The next prime is 1123973. The reversal of 1123969 is 9693211.

It is not a de Polignac number, because 1123969 - 2³ = 1123961 is a prime.

It is a super-2 number, since 2×1123969² = 2526612625922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123969.

It is not an unprimeable number, because it can be changed into a prime (1123961) 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 11 ways as a sum of consecutive naturals, for example, 184 + ... + 1510.

2^1123969 is an apocalyptic number.

It is an amenable number.

1123969 is a deficient number, since it is larger than the sum of its proper divisors (289023).

1123969 is a wasteful number, since it uses less digits than its factorization.

1123969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1345 counting only the distinct ones).

The product of its digits is 2916, while the sum is 31.

The square root of 1123969 is about 1060.1740423157. The cubic root of 1123969 is about 103.9724100877.

The spelling of 1123969 in words is "one million, one hundred twenty-three thousand, nine hundred sixty-nine".