161324065 has 8 divisors (see below), whose sum is σ = 221244480. Its totient is φ = 110622192.

The previous prime is 161324039. The next prime is 161324081. The reversal of 161324065 is 560423161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161324065 is a prime.

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, 2304595 + ... + 2304664.

It is an arithmetic number, because the mean of its divisors is an integer number (27655560).

Almost surely, 2^161324065 is an apocalyptic number.

It is an amenable number.

161324065 is a deficient number, since it is larger than the sum of its proper divisors (59920415).

161324065 is an equidigital number, since it uses as much as digits as its factorization.

161324065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609271.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 161324065 is about 12701.3410709263. The cubic root of 161324065 is about 544.3769385582.

The spelling of 161324065 in words is "one hundred sixty-one million, three hundred twenty-four thousand, sixty-five".