2148117247 has 2 divisors, whose sum is σ = 2148117248. Its totient is φ = 2148117246.

The previous prime is 2148117239. The next prime is 2148117271. The reversal of 2148117247 is 7427118412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2148117247 - 2³ = 2148117239 is a prime.

It is a super-2 number, since 2×2148117247² = 9228815413717718018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2148117227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074058623 + 1074058624.

It is an arithmetic number, because the mean of its divisors is an integer number (1074058624).

Almost surely, 2^2148117247 is an apocalyptic number.

2148117247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148117247 is an equidigital number, since it uses as much as digits as its factorization.

2148117247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25088, while the sum is 37.

The square root of 2148117247 is about 46347.7857831418. The cubic root of 2148117247 is about 1290.2860265544.

The spelling of 2148117247 in words is "two billion, one hundred forty-eight million, one hundred seventeen thousand, two hundred forty-seven".