1123125 has 20 divisors (see below), whose sum is σ = 1874400. Its totient is φ = 598000.

The previous prime is 1123093. The next prime is 1123127. The reversal of 1123125 is 5213211.

It is not a de Polignac number, because 1123125 - 2⁵ = 1123093 is a prime.

It is a super-2 number, since 2×1123125² = 2522819531250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

1123125 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1576 + ... + 2174.

It is an arithmetic number, because the mean of its divisors is an integer number (93720).

2^1123125 is an apocalyptic number.

1123125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123125 is a deficient number, since it is larger than the sum of its proper divisors (751275).

1123125 is an frugal number, since it uses more digits than its factorization.

1123125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 607 counting only the distinct ones).

The product of its digits is 60, while the sum is 15.

The square root of 1123125 is about 1059.7759197113. The cubic root of 1123125 is about 103.9463789166.

Adding to 1123125 its reverse (5213211), we get a palindrome (6336336).

The spelling of 1123125 in words is "one million, one hundred twenty-three thousand, one hundred twenty-five".