168013541 has 2 divisors, whose sum is σ = 168013542. Its totient is φ = 168013540.

The previous prime is 168013537. The next prime is 168013589. The reversal of 168013541 is 145310861.

168013541 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., 84364225 + 83649316 = 9185^2 + 9146^2 .

It is a cyclic number.

It is not a de Polignac number, because 168013541 - 2² = 168013537 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168013591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84006770 + 84006771.

It is an arithmetic number, because the mean of its divisors is an integer number (84006771).

Almost surely, 2^168013541 is an apocalyptic number.

It is an amenable number.

168013541 is a deficient number, since it is larger than the sum of its proper divisors (1).

168013541 is an equidigital number, since it uses as much as digits as its factorization.

168013541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 168013541 is about 12962.0037417060. The cubic root of 168013541 is about 551.7996597161.

The spelling of 168013541 in words is "one hundred sixty-eight million, thirteen thousand, five hundred forty-one".