7139019247 has 2 divisors, whose sum is σ = 7139019248. Its totient is φ = 7139019246.

The previous prime is 7139019191. The next prime is 7139019299. The reversal of 7139019247 is 7429109317.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7139019247 - 2³¹ = 4991535599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7139019347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569509623 + 3569509624.

It is an arithmetic number, because the mean of its divisors is an integer number (3569509624).

Almost surely, 2^7139019247 is an apocalyptic number.

7139019247 is a deficient number, since it is larger than the sum of its proper divisors (1).

7139019247 is an equidigital number, since it uses as much as digits as its factorization.

7139019247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 7139019247 is about 84492.7171240220. The cubic root of 7139019247 is about 1925.5117993295.

The spelling of 7139019247 in words is "seven billion, one hundred thirty-nine million, nineteen thousand, two hundred forty-seven".