181194044 has 12 divisors (see below), whose sum is σ = 317221800. Its totient is φ = 90559248.

The previous prime is 181194043. The next prime is 181194053. The reversal of 181194044 is 440491181.

It is a self number, because there is not a number n which added to its sum of digits gives 181194044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181194043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3242 + ... + 19310.

It is an arithmetic number, because the mean of its divisors is an integer number (26435150).

Almost surely, 2^181194044 is an apocalyptic number.

It is an amenable number.

181194044 is a deficient number, since it is larger than the sum of its proper divisors (136027756).

181194044 is a wasteful number, since it uses less digits than its factorization.

181194044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18892 (or 18890 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 181194044 is about 13460.8337037496. The cubic root of 181194044 is about 565.8673539501.

The spelling of 181194044 in words is "one hundred eighty-one million, one hundred ninety-four thousand, forty-four".