1289133 has 12 divisors (see below), whose sum is σ = 1873248. Its totient is φ = 854280.

The previous prime is 1289129. The next prime is 1289149. The reversal of 1289133 is 3319821.

It is not a de Polignac number, because 1289133 - 2² = 1289129 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1289097 and 1289106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289153) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1728 + ... + 2358.

It is an arithmetic number, because the mean of its divisors is an integer number (156104).

2^1289133 is an apocalyptic number.

It is an amenable number.

1289133 is a deficient number, since it is larger than the sum of its proper divisors (584115).

1289133 is a wasteful number, since it uses less digits than its factorization.

1289133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 861 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1289133 is about 1135.3999295402. The cubic root of 1289133 is about 108.8343301502.

It can be divided in two parts, 128 and 9133, that added together give a cube (9261 = 21³).

The spelling of 1289133 in words is "one million, two hundred eighty-nine thousand, one hundred thirty-three".