163313403 has 8 divisors (see below), whose sum is σ = 237546816. Its totient is φ = 98977800.

The previous prime is 163313393. The next prime is 163313429. The reversal of 163313403 is 304313361.

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

It is not a de Polignac number, because 163313403 - 2¹⁰ = 163312379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163313443) 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, 2474413 + ... + 2474478.

It is an arithmetic number, because the mean of its divisors is an integer number (29693352).

Almost surely, 2^163313403 is an apocalyptic number.

163313403 is a deficient number, since it is larger than the sum of its proper divisors (74233413).

163313403 is a wasteful number, since it uses less digits than its factorization.

163313403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4948905.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 163313403 is about 12779.4132494415. The cubic root of 163313403 is about 546.6054314135.

Adding to 163313403 its reverse (304313361), we get a palindrome (467626764).

The spelling of 163313403 in words is "one hundred sixty-three million, three hundred thirteen thousand, four hundred three".