163020603 has 8 divisors (see below), whose sum is σ = 217864528. Its totient is φ = 108428544.

The previous prime is 163020587. The next prime is 163020643. The reversal of 163020603 is 306020361.

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

It is not a de Polignac number, because 163020603 - 2⁴ = 163020587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163020603.

It is not an unprimeable number, because it can be changed into a prime (163020643) 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, 61450 + ... + 64047.

It is an arithmetic number, because the mean of its divisors is an integer number (27233066).

Almost surely, 2^163020603 is an apocalyptic number.

163020603 is a deficient number, since it is larger than the sum of its proper divisors (54843925).

163020603 is a wasteful number, since it uses less digits than its factorization.

163020603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125933.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 163020603 is about 12767.9521850608. The cubic root of 163020603 is about 546.2785715026.

Adding to 163020603 its reverse (306020361), we get a palindrome (469040964).

The spelling of 163020603 in words is "one hundred sixty-three million, twenty thousand, six hundred three".