1123900 has 18 divisors (see below), whose sum is σ = 2439080. Its totient is φ = 449520.

The previous prime is 1123897. The next prime is 1123901. The reversal of 1123900 is 93211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5520 + ... + 5719.

2^1123900 is an apocalyptic number.

1123900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123900 is an abundant number, since it is smaller than the sum of its proper divisors (1315180).

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

1123900 is a wasteful number, since it uses less digits than its factorization.

1123900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11253 (or 11246 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1123900 is about 1060.1414999895. The cubic root of 1123900 is about 103.9702824362.

The spelling of 1123900 in words is "one million, one hundred twenty-three thousand, nine hundred".