613688171 has 2 divisors, whose sum is σ = 613688172. Its totient is φ = 613688170.

The previous prime is 613688161. The next prime is 613688189. The reversal of 613688171 is 171886316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 613688171 - 2⁶ = 613688107 is a prime.

It is a super-2 number, since 2×613688171² = 753226342450650482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (613688161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306844085 + 306844086.

It is an arithmetic number, because the mean of its divisors is an integer number (306844086).

Almost surely, 2^613688171 is an apocalyptic number.

613688171 is a deficient number, since it is larger than the sum of its proper divisors (1).

613688171 is an equidigital number, since it uses as much as digits as its factorization.

613688171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 41.

The square root of 613688171 is about 24772.7303904919. The cubic root of 613688171 is about 849.7984163259.

The spelling of 613688171 in words is "six hundred thirteen million, six hundred eighty-eight thousand, one hundred seventy-one".