163142603 has 16 divisors (see below), whose sum is σ = 182303520. Its totient is φ = 144958464.

The previous prime is 163142599. The next prime is 163142621. The reversal of 163142603 is 306241361.

It is a cyclic number.

It is not a de Polignac number, because 163142603 - 2² = 163142599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163142653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242075 + ... + 242747.

It is an arithmetic number, because the mean of its divisors is an integer number (11393970).

Almost surely, 2^163142603 is an apocalyptic number.

163142603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

163142603 is a deficient number, since it is larger than the sum of its proper divisors (19160917).

163142603 is a wasteful number, since it uses less digits than its factorization.

163142603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 163142603 is about 12772.7288783564. The cubic root of 163142603 is about 546.4148106570.

Adding to 163142603 its reverse (306241361), we get a palindrome (469383964).

The spelling of 163142603 in words is "one hundred sixty-three million, one hundred forty-two thousand, six hundred three".