181113448 has 16 divisors (see below), whose sum is σ = 339768000. Its totient is φ = 90508656.

The previous prime is 181113437. The next prime is 181113451. The reversal of 181113448 is 844311181.

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, 13873 + ... + 23551.

It is an arithmetic number, because the mean of its divisors is an integer number (21235500).

Almost surely, 2^181113448 is an apocalyptic number.

It is an amenable number.

181113448 is a deficient number, since it is larger than the sum of its proper divisors (158654552).

181113448 is a wasteful number, since it uses less digits than its factorization.

181113448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12024 (or 12020 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 181113448 is about 13457.8396483239. The cubic root of 181113448 is about 565.7834413152.

The spelling of 181113448 in words is "one hundred eighty-one million, one hundred thirteen thousand, four hundred forty-eight".