180081233 has 2 divisors, whose sum is σ = 180081234. Its totient is φ = 180081232.

The previous prime is 180081203. The next prime is 180081287. The reversal of 180081233 is 332180081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116273089 + 63808144 = 10783^2 + 7988^2 .

It is an emirp because it is prime and its reverse (332180081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180081233 - 2¹² = 180077137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (180081203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90040616 + 90040617.

It is an arithmetic number, because the mean of its divisors is an integer number (90040617).

Almost surely, 2^180081233 is an apocalyptic number.

It is an amenable number.

180081233 is a deficient number, since it is larger than the sum of its proper divisors (1).

180081233 is an equidigital number, since it uses as much as digits as its factorization.

180081233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 180081233 is about 13419.4348986833. The cubic root of 180081233 is about 564.7065414210.

Subtracting from 180081233 its product of nonzero digits (1152), we obtain a palindrome (180080081).

The spelling of 180081233 in words is "one hundred eighty million, eighty-one thousand, two hundred thirty-three".