155928163 has 4 divisors (see below), whose sum is σ = 156009168. Its totient is φ = 155847160.

The previous prime is 155928137. The next prime is 155928181. The reversal of 155928163 is 361829551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155928163 - 2¹⁷ = 155797091 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155928103) 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 3 ways as a sum of consecutive naturals, for example, 37543 + ... + 41488.

It is an arithmetic number, because the mean of its divisors is an integer number (39002292).

Almost surely, 2^155928163 is an apocalyptic number.

155928163 is a deficient number, since it is larger than the sum of its proper divisors (81005).

155928163 is an equidigital number, since it uses as much as digits as its factorization.

155928163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81004.

The product of its digits is 64800, while the sum is 40.

The square root of 155928163 is about 12487.1198841046. The cubic root of 155928163 is about 538.2386173584.

The spelling of 155928163 in words is "one hundred fifty-five million, nine hundred twenty-eight thousand, one hundred sixty-three".