8130247 has 4 divisors (see below), whose sum is σ = 8483760. Its totient is φ = 7776736.

The previous prime is 8130193. The next prime is 8130251. The reversal of 8130247 is 7420318.

8130247 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8130247 - 2¹⁹ = 7605959 is a prime.

It is a super-2 number, since 2×8130247² = 132201832562018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8130547) 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 3 ways as a sum of consecutive naturals, for example, 176722 + ... + 176767.

It is an arithmetic number, because the mean of its divisors is an integer number (2120940).

Almost surely, 2^8130247 is an apocalyptic number.

8130247 is a deficient number, since it is larger than the sum of its proper divisors (353513).

8130247 is a wasteful number, since it uses less digits than its factorization.

8130247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353512.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 8130247 is about 2851.3587988887. The cubic root of 8130247 is about 201.0795539979.

The spelling of 8130247 in words is "eight million, one hundred thirty thousand, two hundred forty-seven".