181450048 has 42 divisors (see below), whose sum is σ = 388594346. Its totient is φ = 83566848.

The previous prime is 181450001. The next prime is 181450063. The reversal of 181450048 is 840054181.

It can be written as a sum of positive squares in only one way, i.e., 125619264 + 55830784 = 11208^2 + 7472^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 388311 + ... + 388777.

Almost surely, 2^181450048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181450048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194297173).

181450048 is an abundant number, since it is smaller than the sum of its proper divisors (207144298).

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

181450048 is an frugal number, since it uses more digits than its factorization.

181450048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 181450048 is about 13470.3395651335. The cubic root of 181450048 is about 566.1337279277.

The spelling of 181450048 in words is "one hundred eighty-one million, four hundred fifty thousand, forty-eight".