61208171 has 2 divisors, whose sum is σ = 61208172. Its totient is φ = 61208170.

The previous prime is 61208153. The next prime is 61208179. The reversal of 61208171 is 17180216.

61208171 is nontrivially palindromic in base 8.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61208171 - 2¹⁴ = 61191787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61208171.

It is not a weakly prime, because it can be changed into another prime (61208179) 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, 30604085 + 30604086.

It is an arithmetic number, because the mean of its divisors is an integer number (30604086).

Almost surely, 2^61208171 is an apocalyptic number.

61208171 is a deficient number, since it is larger than the sum of its proper divisors (1).

61208171 is an equidigital number, since it uses as much as digits as its factorization.

61208171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 61208171 is about 7823.5651080566. The cubic root of 61208171 is about 394.0970047252.

Adding to 61208171 its reverse (17180216), we get a palindrome (78388387).

The spelling of 61208171 in words is "sixty-one million, two hundred eight thousand, one hundred seventy-one".