161472316 has 12 divisors (see below), whose sum is σ = 283704120. Its totient is φ = 80414000.

The previous prime is 161472299. The next prime is 161472331. The reversal of 161472316 is 613274161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79411 + ... + 81418.

It is an arithmetic number, because the mean of its divisors is an integer number (23642010).

Almost surely, 2^161472316 is an apocalyptic number.

It is an amenable number.

161472316 is a deficient number, since it is larger than the sum of its proper divisors (122231804).

161472316 is a wasteful number, since it uses less digits than its factorization.

161472316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161084 (or 161082 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 161472316 is about 12707.1757680454. The cubic root of 161472316 is about 544.5436417645.

The spelling of 161472316 in words is "one hundred sixty-one million, four hundred seventy-two thousand, three hundred sixteen".