181481150 has 12 divisors (see below), whose sum is σ = 337555032. Its totient is φ = 72592440.

The previous prime is 181481149. The next prime is 181481177. The reversal of 181481150 is 51184181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1814762 + ... + 1814861.

It is an arithmetic number, because the mean of its divisors is an integer number (28129586).

Almost surely, 2^181481150 is an apocalyptic number.

181481150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

181481150 is a deficient number, since it is larger than the sum of its proper divisors (156073882).

181481150 is a wasteful number, since it uses less digits than its factorization.

181481150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629635 (or 3629630 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 29.

The square root of 181481150 is about 13471.4939780263. The cubic root of 181481150 is about 566.1660727070.

The spelling of 181481150 in words is "one hundred eighty-one million, four hundred eighty-one thousand, one hundred fifty".