163143337 has 4 divisors (see below), whose sum is σ = 186449536. Its totient is φ = 139837140.

The previous prime is 163143307. The next prime is 163143349. The reversal of 163143337 is 733341361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163143337 - 2¹⁹ = 162619049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163143299 and 163143308.

It is not an unprimeable number, because it can be changed into a prime (163143307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11653089 + ... + 11653102.

It is an arithmetic number, because the mean of its divisors is an integer number (46612384).

Almost surely, 2^163143337 is an apocalyptic number.

It is an amenable number.

163143337 is a deficient number, since it is larger than the sum of its proper divisors (23306199).

163143337 is an equidigital number, since it uses as much as digits as its factorization.

163143337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23306198.

The product of its digits is 13608, while the sum is 31.

The square root of 163143337 is about 12772.7576114166. The cubic root of 163143337 is about 546.4156301197.

Adding to 163143337 its reverse (733341361), we get a palindrome (896484698).

The spelling of 163143337 in words is "one hundred sixty-three million, one hundred forty-three thousand, three hundred thirty-seven".