161873082 has 48 divisors (see below), whose sum is σ = 424412352. Its totient is φ = 43528320.

The previous prime is 161873069. The next prime is 161873087. The reversal of 161873082 is 280378161.

161873082 is a `hidden beast` number, since 1 + 618 + 7 + 30 + 8 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (161873087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35644 + ... + 39927.

It is an arithmetic number, because the mean of its divisors is an integer number (8841924).

Almost surely, 2^161873082 is an apocalyptic number.

161873082 is an abundant number, since it is smaller than the sum of its proper divisors (262539270).

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

161873082 is a wasteful number, since it uses less digits than its factorization.

161873082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75603 (or 75600 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 161873082 is about 12722.9352745347. The cubic root of 161873082 is about 544.9937793527.

The spelling of 161873082 in words is "one hundred sixty-one million, eight hundred seventy-three thousand, eighty-two".