180408197 has 2 divisors, whose sum is σ = 180408198. Its totient is φ = 180408196.

The previous prime is 180408167. The next prime is 180408227. The reversal of 180408197 is 791804081.

It is a balanced prime because it is at equal distance from previous prime (180408167) and next prime (180408227).

It can be written as a sum of positive squares in only one way, i.e., 100681156 + 79727041 = 10034^2 + 8929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180408197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180408197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180408167) 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, 90204098 + 90204099.

It is an arithmetic number, because the mean of its divisors is an integer number (90204099).

Almost surely, 2^180408197 is an apocalyptic number.

It is an amenable number.

180408197 is a deficient number, since it is larger than the sum of its proper divisors (1).

180408197 is an equidigital number, since it uses as much as digits as its factorization.

180408197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 180408197 is about 13431.6118541298. The cubic root of 180408197 is about 565.0481040830.

The spelling of 180408197 in words is "one hundred eighty million, four hundred eight thousand, one hundred ninety-seven".