1209133 has 4 divisors (see below), whose sum is σ = 1261728. Its totient is φ = 1156540.

The previous prime is 1209121. The next prime is 1209139. The reversal of 1209133 is 3319021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1209133 is a prime.

It is a super-2 number, since 2×1209133² = 2924005223378, which contains 22 as substring.

It is a Duffinian number.

1209133 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1209133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26263 + ... + 26308.

It is an arithmetic number, because the mean of its divisors is an integer number (315432).

2^1209133 is an apocalyptic number.

It is an amenable number.

1209133 is a deficient number, since it is larger than the sum of its proper divisors (52595).

1209133 is an equidigital number, since it uses as much as digits as its factorization.

1209133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52594.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1209133 is about 1099.6058384712. The cubic root of 1209133 is about 106.5347664345.

The spelling of 1209133 in words is "one million, two hundred nine thousand, one hundred thirty-three".