166046129 has 2 divisors, whose sum is σ = 166046130. Its totient is φ = 166046128.

The previous prime is 166046117. The next prime is 166046147. The reversal of 166046129 is 921640661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156925729 + 9120400 = 12527^2 + 3020^2 .

It is a cyclic number.

It is not a de Polignac number, because 166046129 - 2⁴ = 166046113 is a prime.

It is not a weakly prime, because it can be changed into another prime (166046029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83023064 + 83023065.

It is an arithmetic number, because the mean of its divisors is an integer number (83023065).

Almost surely, 2^166046129 is an apocalyptic number.

It is an amenable number.

166046129 is a deficient number, since it is larger than the sum of its proper divisors (1).

166046129 is an equidigital number, since it uses as much as digits as its factorization.

166046129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 166046129 is about 12885.8887547581. Note that the first 3 decimals coincide. The cubic root of 166046129 is about 549.6373686724.

The spelling of 166046129 in words is "one hundred sixty-six million, forty-six thousand, one hundred twenty-nine".