181045996 has 24 divisors (see below), whose sum is σ = 332118864. Its totient is φ = 86257920.

The previous prime is 181045981. The next prime is 181045999. The reversal of 181045996 is 699540181.

181045996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (181045999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5785 + ... + 19888.

It is an arithmetic number, because the mean of its divisors is an integer number (13838286).

Almost surely, 2^181045996 is an apocalyptic number.

It is an amenable number.

181045996 is a deficient number, since it is larger than the sum of its proper divisors (151072868).

181045996 is a wasteful number, since it uses less digits than its factorization.

181045996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25761 (or 25759 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 181045996 is about 13455.3333663644. Note that the first 4 decimals coincide. The cubic root of 181045996 is about 565.7131944363.

The spelling of 181045996 in words is "one hundred eighty-one million, forty-five thousand, nine hundred ninety-six".