166453141 has 2 divisors, whose sum is σ = 166453142. Its totient is φ = 166453140.

The previous prime is 166453123. The next prime is 166453163. The reversal of 166453141 is 141354661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157126225 + 9326916 = 12535^2 + 3054^2 .

It is a cyclic number.

It is not a de Polignac number, because 166453141 - 2¹⁷ = 166322069 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 (166453241) 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, 83226570 + 83226571.

It is an arithmetic number, because the mean of its divisors is an integer number (83226571).

Almost surely, 2^166453141 is an apocalyptic number.

It is an amenable number.

166453141 is a deficient number, since it is larger than the sum of its proper divisors (1).

166453141 is an equidigital number, since it uses as much as digits as its factorization.

166453141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 166453141 is about 12901.6720234239. The cubic root of 166453141 is about 550.0860923083.

The spelling of 166453141 in words is "one hundred sixty-six million, four hundred fifty-three thousand, one hundred forty-one".