61082171 has 2 divisors, whose sum is σ = 61082172. Its totient is φ = 61082170.

The previous prime is 61082143. The next prime is 61082191. The reversal of 61082171 is 17128016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61082171 - 2¹⁰ = 61081147 is a prime.

It is a super-2 number, since 2×61082171² = 7462063228146482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61082171.

It is not a weakly prime, because it can be changed into another prime (61082111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30541085 + 30541086.

It is an arithmetic number, because the mean of its divisors is an integer number (30541086).

Almost surely, 2^61082171 is an apocalyptic number.

61082171 is a deficient number, since it is larger than the sum of its proper divisors (1).

61082171 is an equidigital number, since it uses as much as digits as its factorization.

61082171 is an evil number, because the sum of its binary digits is even.

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

The square root of 61082171 is about 7815.5083647834. The cubic root of 61082171 is about 393.8263963295.

The spelling of 61082171 in words is "sixty-one million, eighty-two thousand, one hundred seventy-one".