1123426 has 4 divisors (see below), whose sum is σ = 1685142. Its totient is φ = 561712.

The previous prime is 1123403. The next prime is 1123427. The reversal of 1123426 is 6243211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 632025 + 491401 = 795^2 + 701^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123427) 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 as a sum of consecutive naturals, namely, 280855 + ... + 280858.

2^1123426 is an apocalyptic number.

1123426 is a deficient number, since it is larger than the sum of its proper divisors (561716).

1123426 is an equidigital number, since it uses as much as digits as its factorization.

1123426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561715.

The product of its digits is 288, while the sum is 19.

The square root of 1123426 is about 1059.9179213505. The cubic root of 1123426 is about 103.9556640408.

Adding to 1123426 its reverse (6243211), we get a palindrome (7366637).

The spelling of 1123426 in words is "one million, one hundred twenty-three thousand, four hundred twenty-six".