180056073 has 4 divisors (see below), whose sum is σ = 240074768. Its totient is φ = 120037380.

The previous prime is 180056057. The next prime is 180056077. The reversal of 180056073 is 370650081.

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.

It is not a de Polignac number, because 180056073 - 2⁴ = 180056057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 180056073.

It is not an unprimeable number, because it can be changed into a prime (180056077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30009343 + ... + 30009348.

It is an arithmetic number, because the mean of its divisors is an integer number (60018692).

Almost surely, 2^180056073 is an apocalyptic number.

It is an amenable number.

180056073 is a deficient number, since it is larger than the sum of its proper divisors (60018695).

180056073 is an equidigital number, since it uses as much as digits as its factorization.

180056073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60018694.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 180056073 is about 13418.4974196070. The cubic root of 180056073 is about 564.6802409230.

The spelling of 180056073 in words is "one hundred eighty million, fifty-six thousand, seventy-three".