166753129 has 2 divisors, whose sum is σ = 166753130. Its totient is φ = 166753128.

The previous prime is 166753099. The next prime is 166753141. The reversal of 166753129 is 921357661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121594729 + 45158400 = 11027^2 + 6720^2 .

It is a cyclic number.

It is not a de Polignac number, because 166753129 - 2⁷ = 166753001 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 166753091 and 166753100.

It is not a weakly prime, because it can be changed into another prime (166753429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83376564 + 83376565.

It is an arithmetic number, because the mean of its divisors is an integer number (83376565).

Almost surely, 2^166753129 is an apocalyptic number.

It is an amenable number.

166753129 is a deficient number, since it is larger than the sum of its proper divisors (1).

166753129 is an equidigital number, since it uses as much as digits as its factorization.

166753129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 166753129 is about 12913.2927249405. The cubic root of 166753129 is about 550.4163558091.

The spelling of 166753129 in words is "one hundred sixty-six million, seven hundred fifty-three thousand, one hundred twenty-nine".