168413129 has 2 divisors, whose sum is σ = 168413130. Its totient is φ = 168413128.

The previous prime is 168413057. The next prime is 168413191. The reversal of 168413129 is 921314861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147573904 + 20839225 = 12148^2 + 4565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168413129 is a prime.

It is not a weakly prime, because it can be changed into another prime (168413629) 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, 84206564 + 84206565.

It is an arithmetic number, because the mean of its divisors is an integer number (84206565).

Almost surely, 2^168413129 is an apocalyptic number.

It is an amenable number.

168413129 is a deficient number, since it is larger than the sum of its proper divisors (1).

168413129 is an equidigital number, since it uses as much as digits as its factorization.

168413129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 168413129 is about 12977.4084084612. The cubic root of 168413129 is about 552.2367632813.

The spelling of 168413129 in words is "one hundred sixty-eight million, four hundred thirteen thousand, one hundred twenty-nine".