166897301 has 2 divisors, whose sum is σ = 166897302. Its totient is φ = 166897300.

The previous prime is 166897267. The next prime is 166897307. The reversal of 166897301 is 103798661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162052900 + 4844401 = 12730^2 + 2201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166897301 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166897307) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83448650 + 83448651.

It is an arithmetic number, because the mean of its divisors is an integer number (83448651).

Almost surely, 2^166897301 is an apocalyptic number.

It is an amenable number.

166897301 is a deficient number, since it is larger than the sum of its proper divisors (1).

166897301 is an equidigital number, since it uses as much as digits as its factorization.

166897301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 166897301 is about 12918.8738286276. The cubic root of 166897301 is about 550.5749370778.

The spelling of 166897301 in words is "one hundred sixty-six million, eight hundred ninety-seven thousand, three hundred one".