8855145 has 24 divisors (see below), whose sum is σ = 16530696. Its totient is φ = 4359168.

The previous prime is 8855137. The next prime is 8855149. The reversal of 8855145 is 5415588.

8855145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 281961 + 8573184 = 531^2 + 2928^2 .

It is not a de Polignac number, because 8855145 - 2³ = 8855137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8855149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6984 + ... + 8153.

It is an arithmetic number, because the mean of its divisors is an integer number (688779).

Almost surely, 2^8855145 is an apocalyptic number.

It is an amenable number.

8855145 is a deficient number, since it is larger than the sum of its proper divisors (7675551).

8855145 is a wasteful number, since it uses less digits than its factorization.

8855145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15161 (or 15158 counting only the distinct ones).

The product of its digits is 32000, while the sum is 36.

The square root of 8855145 is about 2975.7595669005. The cubic root of 8855145 is about 206.8863760656.

The spelling of 8855145 in words is "eight million, eight hundred fifty-five thousand, one hundred forty-five".