1001124 has 18 divisors (see below), whose sum is σ = 2530710. Its totient is φ = 333696.

The previous prime is 1001123. The next prime is 1001153. The reversal of 1001124 is 4211001.

It is a happy number.

1001124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 921600 + 79524 = 960^2 + 282^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1001123) 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, 13869 + ... + 13940.

It is an arithmetic number, because the mean of its divisors is an integer number (140595).

2^1001124 is an apocalyptic number.

It is an amenable number.

1001124 is an abundant number, since it is smaller than the sum of its proper divisors (1529586).

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

1001124 is a wasteful number, since it uses less digits than its factorization.

1001124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27819 (or 27814 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1001124 is about 1000.5618421667. The cubic root of 1001124 is about 100.0374526379.

Adding to 1001124 its reverse (4211001), we get a palindrome (5212125).

The spelling of 1001124 in words is "one million, one thousand, one hundred twenty-four".