180198423 has 24 divisors (see below), whose sum is σ = 272034048. Its totient is φ = 114830352.

The previous prime is 180198409. The next prime is 180198433. The reversal of 180198423 is 324891081.

It is not a de Polignac number, because 180198423 - 2⁴ = 180198407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180198433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13236 + ... + 23142.

It is an arithmetic number, because the mean of its divisors is an integer number (11334752).

Almost surely, 2^180198423 is an apocalyptic number.

180198423 is a deficient number, since it is larger than the sum of its proper divisors (91835625).

180198423 is a wasteful number, since it uses less digits than its factorization.

180198423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10003 (or 10000 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 180198423 is about 13423.8006168149. The cubic root of 180198423 is about 564.8290113536.

The spelling of 180198423 in words is "one hundred eighty million, one hundred ninety-eight thousand, four hundred twenty-three".