161536346 has 16 divisors (see below), whose sum is σ = 257985000. Its totient is φ = 75594240.

The previous prime is 161536307. The next prime is 161536367. The reversal of 161536346 is 643635161.

It can be written as a sum of positive squares in 4 ways, for example, as 131997121 + 29539225 = 11489^2 + 5435^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6971 + ... + 19278.

Almost surely, 2^161536346 is an apocalyptic number.

161536346 is a deficient number, since it is larger than the sum of its proper divisors (96448654).

161536346 is a wasteful number, since it uses less digits than its factorization.

161536346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26449.

The product of its digits is 38880, while the sum is 35.

The square root of 161536346 is about 12709.6949609343. The cubic root of 161536346 is about 544.6156097702.

The spelling of 161536346 in words is "one hundred sixty-one million, five hundred thirty-six thousand, three hundred forty-six".