152181728 has 24 divisors (see below), whose sum is σ = 309274560. Its totient is φ = 73635840.

The previous prime is 152181727. The next prime is 152181737. The reversal of 152181728 is 827181251.

152181728 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 (152181727) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 75713 + ... + 77696.

It is an arithmetic number, because the mean of its divisors is an integer number (12886440).

Almost surely, 2^152181728 is an apocalyptic number.

It is an amenable number.

152181728 is an abundant number, since it is smaller than the sum of its proper divisors (157092832).

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

152181728 is a wasteful number, since it uses less digits than its factorization.

152181728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153450 (or 153442 counting only the distinct ones).

The product of its digits is 8960, while the sum is 35.

The square root of 152181728 is about 12336.1958479914. The cubic root of 152181728 is about 533.8929306954.

The spelling of 152181728 in words is "one hundred fifty-two million, one hundred eighty-one thousand, seven hundred twenty-eight".