19825163 has 2 divisors, whose sum is σ = 19825164. Its totient is φ = 19825162.

The previous prime is 19825123. The next prime is 19825171. The reversal of 19825163 is 36152891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19825163 - 2¹⁴ = 19808779 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19825123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9912581 + 9912582.

It is an arithmetic number, because the mean of its divisors is an integer number (9912582).

Almost surely, 2^19825163 is an apocalyptic number.

19825163 is a deficient number, since it is larger than the sum of its proper divisors (1).

19825163 is an equidigital number, since it uses as much as digits as its factorization.

19825163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 19825163 is about 4452.5456763519. The cubic root of 19825163 is about 270.6484778384.

The spelling of 19825163 in words is "nineteen million, eight hundred twenty-five thousand, one hundred sixty-three".