161925682 has 8 divisors (see below), whose sum is σ = 245246976. Its totient is φ = 80176692.

The previous prime is 161925661. The next prime is 161925691. The reversal of 161925682 is 286529161.

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

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 3 ways as a sum of consecutive naturals, for example, 392818 + ... + 393229.

It is an arithmetic number, because the mean of its divisors is an integer number (30655872).

Almost surely, 2^161925682 is an apocalyptic number.

161925682 is a deficient number, since it is larger than the sum of its proper divisors (83321294).

161925682 is a wasteful number, since it uses less digits than its factorization.

161925682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786152.

The product of its digits is 51840, while the sum is 40.

The square root of 161925682 is about 12725.0022396855. The cubic root of 161925682 is about 545.0528041310.

The spelling of 161925682 in words is "one hundred sixty-one million, nine hundred twenty-five thousand, six hundred eighty-two".