8120116247 has 2 divisors, whose sum is σ = 8120116248. Its totient is φ = 8120116246.

The previous prime is 8120116219. The next prime is 8120116253. The reversal of 8120116247 is 7426110218.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8120116247 - 2²² = 8115921943 is a prime.

It is a super-3 number, since 3×8120116247³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8120116217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060058123 + 4060058124.

It is an arithmetic number, because the mean of its divisors is an integer number (4060058124).

Almost surely, 2^8120116247 is an apocalyptic number.

8120116247 is a deficient number, since it is larger than the sum of its proper divisors (1).

8120116247 is an equidigital number, since it uses as much as digits as its factorization.

8120116247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 8120116247 is about 90111.6876270775. The cubic root of 8120116247 is about 2009.9600040720.

The spelling of 8120116247 in words is "eight billion, one hundred twenty million, one hundred sixteen thousand, two hundred forty-seven".