181450152 has 192 divisors, whose sum is σ = 576072000. Its totient is φ = 52596864.

The previous prime is 181450141. The next prime is 181450219. The reversal of 181450152 is 251054181.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1013599 + ... + 1013777.

It is an arithmetic number, because the mean of its divisors is an integer number (3000375).

Almost surely, 2^181450152 is an apocalyptic number.

181450152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181450152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288036000).

181450152 is an abundant number, since it is smaller than the sum of its proper divisors (394621848).

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

181450152 is a wasteful number, since it uses less digits than its factorization.

181450152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 181450152 is about 13470.3434254662. The cubic root of 181450152 is about 566.1338360895.

The spelling of 181450152 in words is "one hundred eighty-one million, four hundred fifty thousand, one hundred fifty-two".