163321339 has 8 divisors (see below), whose sum is σ = 166551840. Its totient is φ = 160108800.

The previous prime is 163321337. The next prime is 163321373. The reversal of 163321339 is 933123361.

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

It is a cyclic number.

It is not a de Polignac number, because 163321339 - 2¹ = 163321337 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 163321339.

It is not an unprimeable number, because it can be changed into a prime (163321331) 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 7 ways as a sum of consecutive naturals, for example, 14667 + ... + 23275.

It is an arithmetic number, because the mean of its divisors is an integer number (20818980).

Almost surely, 2^163321339 is an apocalyptic number.

163321339 is a deficient number, since it is larger than the sum of its proper divisors (3230501).

163321339 is an equidigital number, since it uses as much as digits as its factorization.

163321339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8981.

The product of its digits is 8748, while the sum is 31.

The square root of 163321339 is about 12779.7237450580. The cubic root of 163321339 is about 546.6142851274.

It can be divided in two parts, 16332 and 1339, that added together give a palindrome (17671).

The spelling of 163321339 in words is "one hundred sixty-three million, three hundred twenty-one thousand, three hundred thirty-nine".