163800003 has 8 divisors (see below), whose sum is σ = 218906128. Its totient is φ = 108946944.

The previous prime is 163799983. The next prime is 163800011. The reversal of 163800003 is 300008361.

163800003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163800003 - 2¹⁰ = 163798979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163800023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61750 + ... + 64347.

It is an arithmetic number, because the mean of its divisors is an integer number (27363266).

Almost surely, 2^163800003 is an apocalyptic number.

163800003 is a deficient number, since it is larger than the sum of its proper divisors (55106125).

163800003 is a wasteful number, since it uses less digits than its factorization.

163800003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126533.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 163800003 is about 12798.4375218227. The cubic root of 163800003 is about 547.1477720289.

Adding to 163800003 its reverse (300008361), we get a palindrome (463808364).

The spelling of 163800003 in words is "one hundred sixty-three million, eight hundred thousand, three".