168833129 has 2 divisors, whose sum is σ = 168833130. Its totient is φ = 168833128.

The previous prime is 168833057. The next prime is 168833131. The reversal of 168833129 is 921338861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90687529 + 78145600 = 9523^2 + 8840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168833129 is a prime.

Together with 168833131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168833149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84416564 + 84416565.

It is an arithmetic number, because the mean of its divisors is an integer number (84416565).

Almost surely, 2^168833129 is an apocalyptic number.

It is an amenable number.

168833129 is a deficient number, since it is larger than the sum of its proper divisors (1).

168833129 is an equidigital number, since it uses as much as digits as its factorization.

168833129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 168833129 is about 12993.5802995171. The cubic root of 168833129 is about 552.6954505976.

The spelling of 168833129 in words is "one hundred sixty-eight million, eight hundred thirty-three thousand, one hundred twenty-nine".