180704149 has 2 divisors, whose sum is σ = 180704150. Its totient is φ = 180704148.

The previous prime is 180704141. The next prime is 180704207. The reversal of 180704149 is 941407081.

180704149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142635249 + 38068900 = 11943^2 + 6170^2 .

It is an emirp because it is prime and its reverse (941407081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180704149 - 2³ = 180704141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180704141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90352074 + 90352075.

It is an arithmetic number, because the mean of its divisors is an integer number (90352075).

Almost surely, 2^180704149 is an apocalyptic number.

It is an amenable number.

180704149 is a deficient number, since it is larger than the sum of its proper divisors (1).

180704149 is an equidigital number, since it uses as much as digits as its factorization.

180704149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 180704149 is about 13442.6243345561. The cubic root of 180704149 is about 565.3569144355.

The spelling of 180704149 in words is "one hundred eighty million, seven hundred four thousand, one hundred forty-nine".