654163 has 2 divisors, whose sum is σ = 654164. Its totient is φ = 654162.

The previous prime is 654161. The next prime is 654167. The reversal of 654163 is 361456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654163 - 2¹ = 654161 is a prime.

Together with 654161, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (654161) 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, 327081 + 327082.

It is an arithmetic number, because the mean of its divisors is an integer number (327082).

2⁶⁵⁴¹⁶³ is an apocalyptic number.

654163 is a deficient number, since it is larger than the sum of its proper divisors (1).

654163 is an equidigital number, since it uses as much as digits as its factorization.

654163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 654163 is about 808.8034371836. The cubic root of 654163 is about 86.8084480724.

The spelling of 654163 in words is "six hundred fifty-four thousand, one hundred sixty-three".