181152380 has 24 divisors (see below), whose sum is σ = 384698160. Its totient is φ = 71646080.

The previous prime is 181152379. The next prime is 181152427. The reversal of 181152380 is 83251181.

181152380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49106 + ... + 52665.

It is an arithmetic number, because the mean of its divisors is an integer number (16029090).

Almost surely, 2^181152380 is an apocalyptic number.

181152380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181152380 is an abundant number, since it is smaller than the sum of its proper divisors (203545780).

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

181152380 is a wasteful number, since it uses less digits than its factorization.

181152380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101869 (or 101867 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 181152380 is about 13459.2860137527. The cubic root of 181152380 is about 565.8239785274.

The spelling of 181152380 in words is "one hundred eighty-one million, one hundred fifty-two thousand, three hundred eighty".