180150109 has 2 divisors, whose sum is σ = 180150110. Its totient is φ = 180150108.

The previous prime is 180150079. The next prime is 180150133. The reversal of 180150109 is 901051081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180150084 + 25 = 13422^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 180150109 - 2¹⁵ = 180117341 is a prime.

It is equal to p_10038274 and since 180150109 and 10038274 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180150169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90075054 + 90075055.

It is an arithmetic number, because the mean of its divisors is an integer number (90075055).

Almost surely, 2^180150109 is an apocalyptic number.

It is an amenable number.

180150109 is a deficient number, since it is larger than the sum of its proper divisors (1).

180150109 is an equidigital number, since it uses as much as digits as its factorization.

180150109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 180150109 is about 13422.0009313068. Note that the first 3 decimals coincide. The cubic root of 180150109 is about 564.7785270271.

Subtracting from 180150109 its sum of digits (25), we obtain a square (180150084 = 13422²).

The spelling of 180150109 in words is "one hundred eighty million, one hundred fifty thousand, one hundred nine".