1122289 has 8 divisors (see below), whose sum is σ = 1358208. Its totient is φ = 905280.

The previous prime is 1122287. The next prime is 1122367. The reversal of 1122289 is 9822211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1122289 - 2¹ = 1122287 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1122281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4597 + ... + 4834.

It is an arithmetic number, because the mean of its divisors is an integer number (169776).

2^1122289 is an apocalyptic number.

It is an amenable number.

1122289 is a deficient number, since it is larger than the sum of its proper divisors (235919).

1122289 is an equidigital number, since it uses as much as digits as its factorization.

1122289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9455.

The product of its digits is 576, while the sum is 25.

The square root of 1122289 is about 1059.3814232844. The cubic root of 1122289 is about 103.9205816269.

It can be divided in two parts, 11222 and 89, that added together give a palindrome (11311).

The spelling of 1122289 in words is "one million, one hundred twenty-two thousand, two hundred eighty-nine".