163381339 has 12 divisors (see below), whose sum is σ = 190150632. Its totient is φ = 139789760.

The previous prime is 163381327. The next prime is 163381411. The reversal of 163381339 is 933183361.

It is a happy number.

It is not a de Polignac number, because 163381339 - 2¹¹ = 163379291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163381298 and 163381307.

It is not an unprimeable number, because it can be changed into a prime (163381319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37657 + ... + 41770.

It is an arithmetic number, because the mean of its divisors is an integer number (15845886).

Almost surely, 2^163381339 is an apocalyptic number.

163381339 is a deficient number, since it is larger than the sum of its proper divisors (26769293).

163381339 is a wasteful number, since it uses less digits than its factorization.

163381339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79466 (or 79455 counting only the distinct ones).

The product of its digits is 34992, while the sum is 37.

The square root of 163381339 is about 12782.0709980816. The cubic root of 163381339 is about 546.6812142090.

The spelling of 163381339 in words is "one hundred sixty-three million, three hundred eighty-one thousand, three hundred thirty-nine".