166104149 has 2 divisors, whose sum is σ = 166104150. Its totient is φ = 166104148.

The previous prime is 166104131. The next prime is 166104151. The reversal of 166104149 is 941401661.

It is a happy number.

166104149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130188100 + 35916049 = 11410^2 + 5993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166104149 is a prime.

It is a super-3 number, since 3×166104149³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 166104151, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166104109) 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, 83052074 + 83052075.

It is an arithmetic number, because the mean of its divisors is an integer number (83052075).

Almost surely, 2^166104149 is an apocalyptic number.

It is an amenable number.

166104149 is a deficient number, since it is larger than the sum of its proper divisors (1).

166104149 is an equidigital number, since it uses as much as digits as its factorization.

166104149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 166104149 is about 12888.1398580245. The cubic root of 166104149 is about 549.7013794922.

The spelling of 166104149 in words is "one hundred sixty-six million, one hundred four thousand, one hundred forty-nine".