15423 has 8 divisors (see below), whose sum is σ = 21168. Its totient is φ = 9984.

The previous prime is 15413. The next prime is 15427. The reversal of 15423 is 32451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15423 - 2⁵ = 15391 is a prime.

It is a d-powerful number, because it can be written as 1 + 5⁵ + 4⁶ + 2¹³ + 3² .

It is a plaindrome in base 14.

It is a zygodrome in base 2 and base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 15423.

It is not an unprimeable number, because it can be changed into a prime (15427) 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, 111 + ... + 207.

It is an arithmetic number, because the mean of its divisors is an integer number (2646).

2¹⁵⁴²³ is an apocalyptic number.

15423 is a deficient number, since it is larger than the sum of its proper divisors (5745).

15423 is an equidigital number, since it uses as much as digits as its factorization.

15423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153.

The product of its digits is 120, while the sum is 15.

The square root of 15423 is about 124.1893715259. The cubic root of 15423 is about 24.8917990444.

Adding to 15423 its reverse (32451), we get a palindrome (47874).

The spelling of 15423 in words is "fifteen thousand, four hundred twenty-three".