8123545 has 16 divisors (see below), whose sum is σ = 10333440. Its totient is φ = 6113664.

The previous prime is 8123543. The next prime is 8123551. The reversal of 8123545 is 5453218.

It is a cyclic number.

It is not a de Polignac number, because 8123545 - 2¹ = 8123543 is a prime.

8123545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8123543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21952 + ... + 22318.

It is an arithmetic number, because the mean of its divisors is an integer number (645840).

Almost surely, 2^8123545 is an apocalyptic number.

It is an amenable number.

8123545 is a deficient number, since it is larger than the sum of its proper divisors (2209895).

8123545 is a wasteful number, since it uses less digits than its factorization.

8123545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624.

The product of its digits is 4800, while the sum is 28.

The square root of 8123545 is about 2850.1833274370. The cubic root of 8123545 is about 201.0242868931.

It can be divided in two parts, 8123 and 545, that added together give a palindrome (8668).

The spelling of 8123545 in words is "eight million, one hundred twenty-three thousand, five hundred forty-five".