8125155 has 24 divisors (see below), whose sum is σ = 14228448. Its totient is φ = 4288896.

The previous prime is 8125153. The next prime is 8125177. The reversal of 8125155 is 5515218.

8125155 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8125155 - 2¹ = 8125153 is a prime.

It is an Ulam number.

8125155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8125153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3759 + ... + 5511.

It is an arithmetic number, because the mean of its divisors is an integer number (592852).

Almost surely, 2^8125155 is an apocalyptic number.

8125155 is a deficient number, since it is larger than the sum of its proper divisors (6103293).

8125155 is a wasteful number, since it uses less digits than its factorization.

8125155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867 (or 1864 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 8125155 is about 2850.4657514168. The cubic root of 8125155 is about 201.0375663059.

The spelling of 8125155 in words is "eight million, one hundred twenty-five thousand, one hundred fifty-five".