102166429 has 2 divisors, whose sum is σ = 102166430. Its totient is φ = 102166428.

The previous prime is 102166417. The next prime is 102166433. The reversal of 102166429 is 924661201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79174404 + 22992025 = 8898^2 + 4795^2 .

It is a cyclic number.

It is not a de Polignac number, because 102166429 - 2¹⁹ = 101642141 is a prime.

It is a super-2 number, since 2×102166429² = 20875958429224082, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102166429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102166459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51083214 + 51083215.

It is an arithmetic number, because the mean of its divisors is an integer number (51083215).

Almost surely, 2^102166429 is an apocalyptic number.

It is an amenable number.

102166429 is a deficient number, since it is larger than the sum of its proper divisors (1).

102166429 is an equidigital number, since it uses as much as digits as its factorization.

102166429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 102166429 is about 10107.7410433786. The cubic root of 102166429 is about 467.4868559889.

The spelling of 102166429 in words is "one hundred two million, one hundred sixty-six thousand, four hundred twenty-nine".