7140124217 has 2 divisors, whose sum is σ = 7140124218. Its totient is φ = 7140124216.

The previous prime is 7140124207. The next prime is 7140124223. The reversal of 7140124217 is 7124210417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3930788416 + 3209335801 = 62696^2 + 56651^2 .

It is a cyclic number.

It is not a de Polignac number, because 7140124217 - 2⁶ = 7140124153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7140124217.

It is not a weakly prime, because it can be changed into another prime (7140124207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3570062108 + 3570062109.

It is an arithmetic number, because the mean of its divisors is an integer number (3570062109).

Almost surely, 2^7140124217 is an apocalyptic number.

It is an amenable number.

7140124217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7140124217 is an equidigital number, since it uses as much as digits as its factorization.

7140124217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 7140124217 is about 84499.2557186157. The cubic root of 7140124217 is about 1925.6111371114.

The spelling of 7140124217 in words is "seven billion, one hundred forty million, one hundred twenty-four thousand, two hundred seventeen".