1004123 has 4 divisors (see below), whose sum is σ = 1007280. Its totient is φ = 1000968.

The previous prime is 1004119. The next prime is 1004137. The reversal of 1004123 is 3214001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1004123 - 2² = 1004119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (251820).

2^1004123 is an apocalyptic number.

1004123 is a deficient number, since it is larger than the sum of its proper divisors (3157).

1004123 is an equidigital number, since it uses as much as digits as its factorization.

1004123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1004123 is about 1002.0593794781. The cubic root of 1004123 is about 100.1372448856.

Adding to 1004123 its reverse (3214001), we get a palindrome (4218124).

The spelling of 1004123 in words is "one million, four thousand, one hundred twenty-three".