163144003 has 8 divisors (see below), whose sum is σ = 181762560. Its totient is φ = 145156680.

The previous prime is 163143983. The next prime is 163144049. The reversal of 163144003 is 300441361.

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

It is not a de Polignac number, because 163144003 - 2¹³ = 163135811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163144703) 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 in 7 ways as a sum of consecutive naturals, for example, 157263 + ... + 158296.

It is an arithmetic number, because the mean of its divisors is an integer number (22720320).

Almost surely, 2^163144003 is an apocalyptic number.

163144003 is a deficient number, since it is larger than the sum of its proper divisors (18618557).

163144003 is a wasteful number, since it uses less digits than its factorization.

163144003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315617.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 163144003 is about 12772.7836825024. The cubic root of 163144003 is about 546.4163736629.

Adding to 163144003 its reverse (300441361), we get a palindrome (463585364).

The spelling of 163144003 in words is "one hundred sixty-three million, one hundred forty-four thousand, three".