1123554 has 16 divisors (see below), whose sum is σ = 2260800. Its totient is φ = 372240.

The previous prime is 1123553. The next prime is 1123561. The reversal of 1123554 is 4553211.

Added to its reverse (4553211) it gives a triangular number (5676765 = T₃₃₆₉).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123554.

It is not an unprimeable number, because it can be changed into a prime (1123553) 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, 724 + ... + 1664.

It is an arithmetic number, because the mean of its divisors is an integer number (141300).

2^1123554 is an apocalyptic number.

1123554 is an abundant number, since it is smaller than the sum of its proper divisors (1137246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123554 is a wasteful number, since it uses less digits than its factorization.

1123554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145.

The product of its digits is 600, while the sum is 21.

The square root of 1123554 is about 1059.9783016647. The cubic root of 1123554 is about 103.9596120296.

Adding to 1123554 its reverse (4553211), we get a palindrome (5676765).

The spelling of 1123554 in words is "one million, one hundred twenty-three thousand, five hundred fifty-four".