168901 has 2 divisors, whose sum is σ = 168902. Its totient is φ = 168900.

The previous prime is 168899. The next prime is 168913. The reversal of 168901 is 109861.

168901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160801 + 8100 = 401^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 168901 - 2¹ = 168899 is a prime.

Together with 168899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84450 + 84451.

It is an arithmetic number, because the mean of its divisors is an integer number (84451).

2¹⁶⁸⁹⁰¹ is an apocalyptic number.

It is an amenable number.

168901 is a deficient number, since it is larger than the sum of its proper divisors (1).

168901 is an equidigital number, since it uses as much as digits as its factorization.

168901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 168901 is about 410.9756683795. The cubic root of 168901 is about 55.2769501956.

The spelling of 168901 in words is "one hundred sixty-eight thousand, nine hundred one".