19530163 has 2 divisors, whose sum is σ = 19530164. Its totient is φ = 19530162.

The previous prime is 19530131. The next prime is 19530167. The reversal of 19530163 is 36103591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19530163 - 2⁵ = 19530131 is a prime.

It is not a weakly prime, because it can be changed into another prime (19530167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9765081 + 9765082.

It is an arithmetic number, because the mean of its divisors is an integer number (9765082).

Almost surely, 2^19530163 is an apocalyptic number.

19530163 is a deficient number, since it is larger than the sum of its proper divisors (1).

19530163 is an equidigital number, since it uses as much as digits as its factorization.

19530163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 19530163 is about 4419.2944006934. The cubic root of 19530163 is about 269.2993401709.

It can be divided in two parts, 195301 and 63, that added together give a square (195364 = 442²).

The spelling of 19530163 in words is "nineteen million, five hundred thirty thousand, one hundred sixty-three".