161172282 has 8 divisors (see below), whose sum is σ = 322344576. Its totient is φ = 53724092.

The previous prime is 161172241. The next prime is 161172301. The reversal of 161172282 is 282271161.

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

161172282 is an admirable 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, 13431018 + ... + 13431029.

It is an arithmetic number, because the mean of its divisors is an integer number (40293072).

Almost surely, 2^161172282 is an apocalyptic number.

161172282 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161172282 is a wasteful number, since it uses less digits than its factorization.

161172282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26862052.

The product of its digits is 2688, while the sum is 30.

The square root of 161172282 is about 12695.3645871239. The cubic root of 161172282 is about 544.2061578962.

The spelling of 161172282 in words is "one hundred sixty-one million, one hundred seventy-two thousand, two hundred eighty-two".