166242829 has 2 divisors, whose sum is σ = 166242830. Its totient is φ = 166242828.

The previous prime is 166242757. The next prime is 166242907. The reversal of 166242829 is 928242661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161874729 + 4368100 = 12723^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 166242829 - 2⁷ = 166242701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166242791 and 166242800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166242029) 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, 83121414 + 83121415.

It is an arithmetic number, because the mean of its divisors is an integer number (83121415).

Almost surely, 2^166242829 is an apocalyptic number.

It is an amenable number.

166242829 is a deficient number, since it is larger than the sum of its proper divisors (1).

166242829 is an equidigital number, since it uses as much as digits as its factorization.

166242829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 166242829 is about 12893.5188757763. The cubic root of 166242829 is about 549.8543184407.

The spelling of 166242829 in words is "one hundred sixty-six million, two hundred forty-two thousand, eight hundred twenty-nine".