8501243 has 2 divisors, whose sum is σ = 8501244. Its totient is φ = 8501242.

The previous prime is 8501239. The next prime is 8501267. The reversal of 8501243 is 3421058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8501243 - 2² = 8501239 is a prime.

It is a super-2 number, since 2×8501243² = 144542265090098, which contains 22 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8501293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4250621 + 4250622.

It is an arithmetic number, because the mean of its divisors is an integer number (4250622).

Almost surely, 2^8501243 is an apocalyptic number.

8501243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8501243 is an equidigital number, since it uses as much as digits as its factorization.

8501243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 8501243 is about 2915.6891123712. The cubic root of 8501243 is about 204.0927026449.

The spelling of 8501243 in words is "eight million, five hundred one thousand, two hundred forty-three".