382998839161 has 3 divisors (see below), whose sum is σ = 382999458031. Its totient is φ = 382998220292.

The previous prime is 382998839147. The next prime is 382998839173. The reversal of 382998839161 is 161938899283.

The square root of 382998839161 is 618869.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 161938899283 = 7 ⋅23134128469.

It can be written as a sum of positive squares in only one way, i.e., 66367549161 + 316631290000 = 257619^2 + 562700^2 .

It is not a de Polignac number, because 382998839161 - 2⁵ = 382998839129 is a prime.

It is a super-2 number, since 2×382998839161² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382998839261) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 309435 + ... + 928303.

Almost surely, 2^382998839161 is an apocalyptic number.

382998839161 is the 618869-th square number.

382998839161 is the 309435-th centered octagonal number.

It is an amenable number.

382998839161 is a deficient number, since it is larger than the sum of its proper divisors (618870).

382998839161 is an frugal number, since it uses more digits than its factorization.

382998839161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237738 (or 618869 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 67.

The spelling of 382998839161 in words is "three hundred eighty-two billion, nine hundred ninety-eight million, eight hundred thirty-nine thousand, one hundred sixty-one".