1134809 has 4 divisors (see below), whose sum is σ = 1222116. Its totient is φ = 1047504.

The previous prime is 1134787. The next prime is 1134811. The reversal of 1134809 is 9084311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9084311 = 151 ⋅60161.

It can be written as a sum of positive squares in 2 ways, for example, as 644809 + 490000 = 803^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 1134809 - 2¹⁶ = 1069273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1134709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43634 + ... + 43659.

It is an arithmetic number, because the mean of its divisors is an integer number (305529).

2^1134809 is an apocalyptic number.

It is an amenable number.

1134809 is a deficient number, since it is larger than the sum of its proper divisors (87307).

1134809 is an equidigital number, since it uses as much as digits as its factorization.

1134809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87306.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1134809 is about 1065.2741431200. The cubic root of 1134809 is about 104.3055915609.

The spelling of 1134809 in words is "one million, one hundred thirty-four thousand, eight hundred nine".