1122609 has 4 divisors (see below), whose sum is σ = 1496816. Its totient is φ = 748404.

The previous prime is 1122599. The next prime is 1122623. The reversal of 1122609 is 9062211.

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 not a de Polignac number, because 1122609 - 2⁷ = 1122481 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122659) 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 3 ways as a sum of consecutive naturals, for example, 187099 + ... + 187104.

It is an arithmetic number, because the mean of its divisors is an integer number (374204).

2^1122609 is an apocalyptic number.

It is an amenable number.

1122609 is a deficient number, since it is larger than the sum of its proper divisors (374207).

1122609 is an equidigital number, since it uses as much as digits as its factorization.

1122609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374206.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1122609 is about 1059.5324440526. The cubic root of 1122609 is about 103.9304577004.

The spelling of 1122609 in words is "one million, one hundred twenty-two thousand, six hundred nine".