181481024 has 28 divisors (see below), whose sum is σ = 365510064. Its totient is φ = 89384064.

The previous prime is 181481021. The next prime is 181481033. The reversal of 181481024 is 420184181.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (181481021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16874 + ... + 25449.

Almost surely, 2^181481024 is an apocalyptic number.

It is an amenable number.

181481024 is an abundant number, since it is smaller than the sum of its proper divisors (184029040).

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

181481024 is an equidigital number, since it uses as much as digits as its factorization.

181481024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42402 (or 42392 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 181481024 is about 13471.4893014841. The cubic root of 181481024 is about 566.1659416797.

The spelling of 181481024 in words is "one hundred eighty-one million, four hundred eighty-one thousand, twenty-four".