161841288 has 32 divisors (see below), whose sum is σ = 462404160. Its totient is φ = 46240320.

The previous prime is 161841287. The next prime is 161841341. The reversal of 161841288 is 882148161.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (161841287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481503 + ... + 481838.

It is an arithmetic number, because the mean of its divisors is an integer number (14450130).

Almost surely, 2^161841288 is an apocalyptic number.

It is an amenable number.

161841288 is an abundant number, since it is smaller than the sum of its proper divisors (300562872).

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

161841288 is a wasteful number, since it uses less digits than its factorization.

161841288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963357 (or 963353 counting only the distinct ones).

The product of its digits is 24576, while the sum is 39.

The square root of 161841288 is about 12721.6857373541. The cubic root of 161841288 is about 544.9580957036.

The spelling of 161841288 in words is "one hundred sixty-one million, eight hundred forty-one thousand, two hundred eighty-eight".