161182044 has 18 divisors (see below), whose sum is σ = 407432480. Its totient is φ = 53727336.

The previous prime is 161182033. The next prime is 161182057. The reversal of 161182044 is 440281161.

It is a happy number.

161182044 is a `hidden beast` number, since 1 + 611 + 8 + 2 + 0 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 161181999 and 161182017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2238604 + ... + 2238675.

Almost surely, 2^161182044 is an apocalyptic number.

It is an amenable number.

161182044 is an abundant number, since it is smaller than the sum of its proper divisors (246250436).

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

161182044 is a wasteful number, since it uses less digits than its factorization.

161182044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477289 (or 4477284 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 161182044 is about 12695.7490523403. The cubic root of 161182044 is about 544.2171449658.

The spelling of 161182044 in words is "one hundred sixty-one million, one hundred eighty-two thousand, forty-four".