5217954139 has 2 divisors, whose sum is σ = 5217954140. Its totient is φ = 5217954138.

The previous prime is 5217954127. The next prime is 5217954163. The reversal of 5217954139 is 9314597125.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5217954139 is a prime.

It is not a weakly prime, because it can be changed into another prime (5217954199) 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, 2608977069 + 2608977070.

It is an arithmetic number, because the mean of its divisors is an integer number (2608977070).

Almost surely, 2^5217954139 is an apocalyptic number.

5217954139 is a deficient number, since it is larger than the sum of its proper divisors (1).

5217954139 is an equidigital number, since it uses as much as digits as its factorization.

5217954139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 46.

The square root of 5217954139 is about 72235.4077928546. The cubic root of 5217954139 is about 1734.4698404254.

The spelling of 5217954139 in words is "five billion, two hundred seventeen million, nine hundred fifty-four thousand, one hundred thirty-nine".