155528101 has 8 divisors (see below), whose sum is σ = 158320224. Its totient is φ = 152743920.

The previous prime is 155528099. The next prime is 155528111. The reversal of 155528101 is 101825551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155528101 - 2¹ = 155528099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155528101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155528111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 48906 + ... + 51988.

It is an arithmetic number, because the mean of its divisors is an integer number (19790028).

Almost surely, 2^155528101 is an apocalyptic number.

It is an amenable number.

155528101 is a deficient number, since it is larger than the sum of its proper divisors (2792123).

155528101 is an equidigital number, since it uses as much as digits as its factorization.

155528101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971.

The product of its (nonzero) digits is 2000, while the sum is 28.

The square root of 155528101 is about 12471.0906098865. The cubic root of 155528101 is about 537.7779068372. Note that the first 3 decimals are identical.

It can be divided in two parts, 15552 and 8101, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 155528101 in words is "one hundred fifty-five million, five hundred twenty-eight thousand, one hundred one".