168535427 has 2 divisors, whose sum is σ = 168535428. Its totient is φ = 168535426.

The previous prime is 168535369. The next prime is 168535439. The reversal of 168535427 is 724535861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168535427 - 2¹⁰ = 168534403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168535457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84267713 + 84267714.

It is an arithmetic number, because the mean of its divisors is an integer number (84267714).

Almost surely, 2^168535427 is an apocalyptic number.

168535427 is a deficient number, since it is larger than the sum of its proper divisors (1).

168535427 is an equidigital number, since it uses as much as digits as its factorization.

168535427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 168535427 is about 12982.1195110814. The cubic root of 168535427 is about 552.3704050992.

The spelling of 168535427 in words is "one hundred sixty-eight million, five hundred thirty-five thousand, four hundred twenty-seven".