180073123 has 4 divisors (see below), whose sum is σ = 181725280. Its totient is φ = 178420968.

The previous prime is 180073073. The next prime is 180073139. The reversal of 180073123 is 321370081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321370081 = 4093 ⋅78517.

It is a cyclic number.

It is not a de Polignac number, because 180073123 - 2⁹ = 180072611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180073193) 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, 825915 + ... + 826132.

It is an arithmetic number, because the mean of its divisors is an integer number (45431320).

Almost surely, 2^180073123 is an apocalyptic number.

180073123 is a deficient number, since it is larger than the sum of its proper divisors (1652157).

180073123 is a wasteful number, since it uses less digits than its factorization.

180073123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652156.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 180073123 is about 13419.1327216031. The cubic root of 180073123 is about 564.6980640638.

The spelling of 180073123 in words is "one hundred eighty million, seventy-three thousand, one hundred twenty-three".