181683095049 has 27 divisors (see below), whose sum is σ = 268222306573. Its totient is φ = 118505783832.

The previous prime is 181683095047. The next prime is 181683095053. The reversal of 181683095049 is 940590386181.

The square root of 181683095049 is 426243.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 181683095049 - 2¹ = 181683095047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 181683094986 and 181683095004.

It is not an unprimeable number, because it can be changed into a prime (181683095047) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 60098752 + ... + 60101774.

Almost surely, 2^181683095049 is an apocalyptic number.

181683095049 is the 426243-rd square number.

181683095049 is the 213122-nd centered octagonal number.

It is an amenable number.

181683095049 is a deficient number, since it is larger than the sum of its proper divisors (86539211524).

181683095049 is an frugal number, since it uses more digits than its factorization.

181683095049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6146 (or 3073 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 181683095049 in words is "one hundred eighty-one billion, six hundred eighty-three million, ninety-five thousand, forty-nine".