179940097 has 2 divisors, whose sum is σ = 179940098. Its totient is φ = 179940096.

The previous prime is 179940083. The next prime is 179940107. The reversal of 179940097 is 790049971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173159281 + 6780816 = 13159^2 + 2604^2 .

It is an emirp because it is prime and its reverse (790049971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 179940097 - 2¹⁹ = 179415809 is a prime.

It is not a weakly prime, because it can be changed into another prime (179940037) 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, 89970048 + 89970049.

It is an arithmetic number, because the mean of its divisors is an integer number (89970049).

Almost surely, 2^179940097 is an apocalyptic number.

It is an amenable number.

179940097 is a deficient number, since it is larger than the sum of its proper divisors (1).

179940097 is an equidigital number, since it uses as much as digits as its factorization.

179940097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 179940097 is about 13414.1752262299. The cubic root of 179940097 is about 564.5589760667.

The spelling of 179940097 in words is "one hundred seventy-nine million, nine hundred forty thousand, ninety-seven".