8128245 has 16 divisors (see below), whose sum is σ = 13133952. Its totient is φ = 4292160.

The previous prime is 8128243. The next prime is 8128249. The reversal of 8128245 is 5428218.

It is not a de Polignac number, because 8128245 - 2¹ = 8128243 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8128243) 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 15 ways as a sum of consecutive naturals, for example, 1086 + ... + 4175.

It is an arithmetic number, because the mean of its divisors is an integer number (820872).

Almost surely, 2^8128245 is an apocalyptic number.

It is an amenable number.

8128245 is a deficient number, since it is larger than the sum of its proper divisors (5005707).

8128245 is a wasteful number, since it uses less digits than its factorization.

8128245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372.

The product of its digits is 5120, while the sum is 30.

The square root of 8128245 is about 2851.0077165802. The cubic root of 8128245 is about 201.0630479674.

The spelling of 8128245 in words is "eight million, one hundred twenty-eight thousand, two hundred forty-five".