155528128 has 28 divisors (see below), whose sum is σ = 352716592. Its totient is φ = 66654720.

The previous prime is 155528117. The next prime is 155528141. The reversal of 155528128 is 821825551.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

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, 173133 + ... + 174028.

Almost surely, 2^155528128 is an apocalyptic number.

It is an amenable number.

155528128 is an abundant number, since it is smaller than the sum of its proper divisors (197188464).

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

155528128 is an equidigital number, since it uses as much as digits as its factorization.

155528128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347180 (or 347170 counting only the distinct ones).

The product of its digits is 32000, while the sum is 37.

The square root of 155528128 is about 12471.0916923900. The cubic root of 155528128 is about 537.7779379570. Note that the first 3 decimals are identical.

The spelling of 155528128 in words is "one hundred fifty-five million, five hundred twenty-eight thousand, one hundred twenty-eight".