180380173 has 4 divisors (see below), whose sum is σ = 180484480. Its totient is φ = 180275868.

The previous prime is 180380171. The next prime is 180380267. The reversal of 180380173 is 371083081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 371083081 = 23 ⋅16134047.

It is a cyclic number.

It is not a de Polignac number, because 180380173 - 2¹ = 180380171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180380171) 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, 49515 + ... + 53032.

It is an arithmetic number, because the mean of its divisors is an integer number (45121120).

Almost surely, 2^180380173 is an apocalyptic number.

It is an amenable number.

180380173 is a deficient number, since it is larger than the sum of its proper divisors (104307).

180380173 is a wasteful number, since it uses less digits than its factorization.

180380173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104306.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 180380173 is about 13430.5686030041. The cubic root of 180380173 is about 565.0188450132.

The spelling of 180380173 in words is "one hundred eighty million, three hundred eighty thousand, one hundred seventy-three".