8120245 has 8 divisors (see below), whose sum is σ = 11136384. Its totient is φ = 5568144.

The previous prime is 8120243. The next prime is 8120251. The reversal of 8120245 is 5420218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8120245 - 2¹ = 8120243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8120243) 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 7 ways as a sum of consecutive naturals, for example, 115969 + ... + 116038.

It is an arithmetic number, because the mean of its divisors is an integer number (1392048).

Almost surely, 2^8120245 is an apocalyptic number.

It is an amenable number.

8120245 is a deficient number, since it is larger than the sum of its proper divisors (3016139).

8120245 is a wasteful number, since it uses less digits than its factorization.

8120245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232019.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 8120245 is about 2849.6043585031. The cubic root of 8120245 is about 200.9970627361.

The spelling of 8120245 in words is "eight million, one hundred twenty thousand, two hundred forty-five".