5213972171 has 2 divisors, whose sum is σ = 5213972172. Its totient is φ = 5213972170.

The previous prime is 5213972129. The next prime is 5213972209. The reversal of 5213972171 is 1712793125.

It is an a-pointer prime, because the next prime (5213972209) can be obtained adding 5213972171 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5213972171 - 2¹⁸ = 5213710027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5213972671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2606986085 + 2606986086.

It is an arithmetic number, because the mean of its divisors is an integer number (2606986086).

Almost surely, 2^5213972171 is an apocalyptic number.

5213972171 is a deficient number, since it is larger than the sum of its proper divisors (1).

5213972171 is an equidigital number, since it uses as much as digits as its factorization.

5213972171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 38.

The square root of 5213972171 is about 72207.8400937184. The cubic root of 5213972171 is about 1734.0285205238.

The spelling of 5213972171 in words is "five billion, two hundred thirteen million, nine hundred seventy-two thousand, one hundred seventy-one".