180423 has 6 divisors (see below), whose sum is σ = 260624. Its totient is φ = 120276.

The previous prime is 180419. The next prime is 180437. The reversal of 180423 is 324081.

It is a happy number.

It is not a de Polignac number, because 180423 - 2² = 180419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 180396 and 180405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180413) 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, 10015 + ... + 10032.

2¹⁸⁰⁴²³ is an apocalyptic number.

180423 is a deficient number, since it is larger than the sum of its proper divisors (80201).

180423 is a wasteful number, since it uses less digits than its factorization.

180423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20053 (or 20050 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 180423 is about 424.7622864615. The cubic root of 180423 is about 56.5063558256.

The spelling of 180423 in words is "one hundred eighty thousand, four hundred twenty-three".