180000901 has 2 divisors, whose sum is σ = 180000902. Its totient is φ = 180000900.

The previous prime is 180000869. The next prime is 180000937. The reversal of 180000901 is 109000081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171741025 + 8259876 = 13105^2 + 2874^2 .

It is a cyclic number.

It is not a de Polignac number, because 180000901 - 2⁵ = 180000869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180001901) 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, 90000450 + 90000451.

It is an arithmetic number, because the mean of its divisors is an integer number (90000451).

Almost surely, 2^180000901 is an apocalyptic number.

It is an amenable number.

180000901 is a deficient number, since it is larger than the sum of its proper divisors (1).

180000901 is an equidigital number, since it uses as much as digits as its factorization.

180000901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 180000901 is about 13416.4414432442. The cubic root of 180000901 is about 564.6225594087.

Adding to 180000901 its reverse (109000081), we get a palindrome (289000982).

It can be divided in two parts, 180000 and 901, that added together give a triangular number (180901 = T₆₀₁).

The spelling of 180000901 in words is "one hundred eighty million, nine hundred one", and thus it is an aban number.