1125144 has 32 divisors (see below), whose sum is σ = 3126000. Its totient is φ = 374976.

The previous prime is 1125143. The next prime is 1125151. The reversal of 1125144 is 4415211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125143) 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, 2389 + ... + 2820.

2^1125144 is an apocalyptic number.

It is an amenable number.

1125144 is an abundant number, since it is smaller than the sum of its proper divisors (2000856).

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

1125144 is a wasteful number, since it uses less digits than its factorization.

1125144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224 (or 5214 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 1125144 is about 1060.7280518587. The cubic root of 1125144 is about 104.0086284754.

The spelling of 1125144 in words is "one million, one hundred twenty-five thousand, one hundred forty-four".