180724673 has 2 divisors, whose sum is σ = 180724674. Its totient is φ = 180724672.

The previous prime is 180724669. The next prime is 180724697. The reversal of 180724673 is 376427081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130484929 + 50239744 = 11423^2 + 7088^2 .

It is an emirp because it is prime and its reverse (376427081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180724673 - 2² = 180724669 is a prime.

It is a super-2 number, since 2×180724673² = 65322814861913858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (180724373) 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 as a sum of consecutive naturals, namely, 90362336 + 90362337.

It is an arithmetic number, because the mean of its divisors is an integer number (90362337).

Almost surely, 2^180724673 is an apocalyptic number.

It is an amenable number.

180724673 is a deficient number, since it is larger than the sum of its proper divisors (1).

180724673 is an equidigital number, since it uses as much as digits as its factorization.

180724673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 180724673 is about 13443.3877054855. The cubic root of 180724673 is about 565.3783176446.

The spelling of 180724673 in words is "one hundred eighty million, seven hundred twenty-four thousand, six hundred seventy-three".