181353072 has 40 divisors (see below), whose sum is σ = 478469376. Its totient is φ = 59164096.

The previous prime is 181353049. The next prime is 181353077. The reversal of 181353072 is 270353181.

181353072 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181353077) 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, 37938 + ... + 42449.

Almost surely, 2^181353072 is an apocalyptic number.

181353072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

181353072 is an abundant number, since it is smaller than the sum of its proper divisors (297116304).

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

181353072 is a wasteful number, since it uses less digits than its factorization.

181353072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80445 (or 80439 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 181353072 is about 13466.7394717504. The cubic root of 181353072 is about 566.0328532084.

The spelling of 181353072 in words is "one hundred eighty-one million, three hundred fifty-three thousand, seventy-two".