166310149 has 2 divisors, whose sum is σ = 166310150. Its totient is φ = 166310148.

The previous prime is 166310113. The next prime is 166310161. The reversal of 166310149 is 941013661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97121025 + 69189124 = 9855^2 + 8318^2 .

It is a cyclic number.

It is not a de Polignac number, because 166310149 - 2¹⁵ = 166277381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166310149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166313149) 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, 83155074 + 83155075.

It is an arithmetic number, because the mean of its divisors is an integer number (83155075).

Almost surely, 2^166310149 is an apocalyptic number.

It is an amenable number.

166310149 is a deficient number, since it is larger than the sum of its proper divisors (1).

166310149 is an equidigital number, since it uses as much as digits as its factorization.

166310149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 166310149 is about 12896.1292254692. The cubic root of 166310149 is about 549.9285295561.

The spelling of 166310149 in words is "one hundred sixty-six million, three hundred ten thousand, one hundred forty-nine".