161347208 has 48 divisors (see below), whose sum is σ = 347034240. Its totient is φ = 70141280.

The previous prime is 161347127. The next prime is 161347243. The reversal of 161347208 is 802743161.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18641 + ... + 25887.

It is an arithmetic number, because the mean of its divisors is an integer number (7229880).

Almost surely, 2^161347208 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 161347208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173517120).

161347208 is an abundant number, since it is smaller than the sum of its proper divisors (185687032).

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

161347208 is a wasteful number, since it uses less digits than its factorization.

161347208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7298 (or 7283 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 161347208 is about 12702.2520837842. The cubic root of 161347208 is about 544.4029687997.

The spelling of 161347208 in words is "one hundred sixty-one million, three hundred forty-seven thousand, two hundred eight".