161128382 has 8 divisors (see below), whose sum is σ = 241814856. Its totient is φ = 80523432.

The previous prime is 161128369. The next prime is 161128399. The reversal of 161128382 is 283821161.

161128382 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15173 + ... + 23504.

It is an arithmetic number, because the mean of its divisors is an integer number (30226857).

Almost surely, 2^161128382 is an apocalyptic number.

161128382 is a deficient number, since it is larger than the sum of its proper divisors (80686474).

161128382 is a wasteful number, since it uses less digits than its factorization.

161128382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40762.

The product of its digits is 4608, while the sum is 32.

The square root of 161128382 is about 12693.6354918518. The cubic root of 161128382 is about 544.1567432378.

The spelling of 161128382 in words is "one hundred sixty-one million, one hundred twenty-eight thousand, three hundred eighty-two".