181121484 has 24 divisors (see below), whose sum is σ = 424484928. Its totient is φ = 60106960.

The previous prime is 181121467. The next prime is 181121489. The reversal of 181121484 is 484121181.

It is not an unprimeable number, because it can be changed into a prime (181121489) 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, 30522 + ... + 35969.

It is an arithmetic number, because the mean of its divisors is an integer number (17686872).

Almost surely, 2^181121484 is an apocalyptic number.

It is an amenable number.

181121484 is an abundant number, since it is smaller than the sum of its proper divisors (243363444).

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

181121484 is a wasteful number, since it uses less digits than its factorization.

181121484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66725 (or 66723 counting only the distinct ones).

The product of its digits is 2048, while the sum is 30.

The square root of 181121484 is about 13458.1382070478. The cubic root of 181121484 is about 565.7918091247.

The spelling of 181121484 in words is "one hundred eighty-one million, one hundred twenty-one thousand, four hundred eighty-four".