1724123 has 4 divisors (see below), whose sum is σ = 1825560. Its totient is φ = 1622688.

The previous prime is 1724113. The next prime is 1724131. The reversal of 1724123 is 3214271.

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 1724123 - 2⁶ = 1724059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1724095 and 1724104.

It is not an unprimeable number, because it can be changed into a prime (1724113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50693 + ... + 50726.

It is an arithmetic number, because the mean of its divisors is an integer number (456390).

2^1724123 is an apocalyptic number.

1724123 is a deficient number, since it is larger than the sum of its proper divisors (101437).

1724123 is a wasteful number, since it uses less digits than its factorization.

1724123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101436.

The product of its digits is 336, while the sum is 20.

The square root of 1724123 is about 1313.0586430164. The cubic root of 1724123 is about 119.9101874272.

Adding to 1724123 its reverse (3214271), we get a palindrome (4938394).

The spelling of 1724123 in words is "one million, seven hundred twenty-four thousand, one hundred twenty-three".