8539147 has 2 divisors, whose sum is σ = 8539148. Its totient is φ = 8539146.

The previous prime is 8539121. The next prime is 8539163. The reversal of 8539147 is 7419358.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8539147 is a prime.

It is not a weakly prime, because it can be changed into another prime (8539177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4269573 + 4269574.

It is an arithmetic number, because the mean of its divisors is an integer number (4269574).

Almost surely, 2^8539147 is an apocalyptic number.

8539147 is a deficient number, since it is larger than the sum of its proper divisors (1).

8539147 is an equidigital number, since it uses as much as digits as its factorization.

8539147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 8539147 is about 2922.1818903005. The cubic root of 8539147 is about 204.3955783910.

It can be divided in two parts, 853 and 9147, that added together give a 4-th power (10000 = 10⁴).

The spelling of 8539147 in words is "eight million, five hundred thirty-nine thousand, one hundred forty-seven".