180073993 has 8 divisors (see below), whose sum is σ = 197747136. Its totient is φ = 162618000.

The previous prime is 180073987. The next prime is 180073997. The reversal of 180073993 is 399370081.

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

It is a cyclic number.

It is not a de Polignac number, because 180073993 - 2²⁵ = 146519561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180073997) 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, 52546 + ... + 55867.

It is an arithmetic number, because the mean of its divisors is an integer number (24718392).

Almost surely, 2^180073993 is an apocalyptic number.

It is an amenable number.

180073993 is a deficient number, since it is larger than the sum of its proper divisors (17673143).

180073993 is a wasteful number, since it uses less digits than its factorization.

180073993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108575.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 180073993 is about 13419.1651379659. The cubic root of 180073993 is about 564.6989734842.

The spelling of 180073993 in words is "one hundred eighty million, seventy-three thousand, nine hundred ninety-three".