163788243 has 8 divisors (see below), whose sum is σ = 218566656. Its totient is φ = 109101000.

The previous prime is 163788241. The next prime is 163788253. The reversal of 163788243 is 342887361.

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

It is not a de Polignac number, because 163788243 - 2¹ = 163788241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163788195 and 163788204.

It is not an unprimeable number, because it can be changed into a prime (163788241) 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, 18483 + ... + 25868.

It is an arithmetic number, because the mean of its divisors is an integer number (27320832).

Almost surely, 2^163788243 is an apocalyptic number.

163788243 is a deficient number, since it is larger than the sum of its proper divisors (54778413).

163788243 is a wasteful number, since it uses less digits than its factorization.

163788243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45585.

The product of its digits is 193536, while the sum is 42.

The square root of 163788243 is about 12797.9780824941. The cubic root of 163788243 is about 547.1346775810.

The spelling of 163788243 in words is "one hundred sixty-three million, seven hundred eighty-eight thousand, two hundred forty-three".