161932288 has 176 divisors, whose sum is σ = 412675200. Its totient is φ = 61931520.

The previous prime is 161932237. The next prime is 161932301. The reversal of 161932288 is 882239161.

It is a self number, because there is not a number n which added to its sum of digits gives 161932288.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3949548 + ... + 3949588.

Almost surely, 2^161932288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161932288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206337600).

161932288 is an abundant number, since it is smaller than the sum of its proper divisors (250742912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161932288 is a wasteful number, since it uses less digits than its factorization.

161932288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 98 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 161932288 is about 12725.2618047724. The cubic root of 161932288 is about 545.0602161112.

It can be divided in two parts, 16193 and 2288, that added together give a palindrome (18481).

The spelling of 161932288 in words is "one hundred sixty-one million, nine hundred thirty-two thousand, two hundred eighty-eight".