5171705431 has 2 divisors, whose sum is σ = 5171705432. Its totient is φ = 5171705430.

The previous prime is 5171705419. The next prime is 5171705449. The reversal of 5171705431 is 1345071715.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5171705431 - 2¹³ = 5171697239 is a prime.

It is a super-2 number, since 2×5171705431² = 53493074130069791522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5171705491) 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, 2585852715 + 2585852716.

It is an arithmetic number, because the mean of its divisors is an integer number (2585852716).

Almost surely, 2^5171705431 is an apocalyptic number.

5171705431 is a deficient number, since it is larger than the sum of its proper divisors (1).

5171705431 is an equidigital number, since it uses as much as digits as its factorization.

5171705431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14700, while the sum is 34.

The square root of 5171705431 is about 71914.5703665120. The cubic root of 5171705431 is about 1729.3302040305.

The spelling of 5171705431 in words is "five billion, one hundred seventy-one million, seven hundred five thousand, four hundred thirty-one".