61745171 has 2 divisors, whose sum is σ = 61745172. Its totient is φ = 61745170.

The previous prime is 61745161. The next prime is 61745191. The reversal of 61745171 is 17154716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61745171 - 2⁶ = 61745107 is a prime.

It is a super-2 number, since 2×61745171² = 7624932283638482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61745161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30872585 + 30872586.

It is an arithmetic number, because the mean of its divisors is an integer number (30872586).

Almost surely, 2^61745171 is an apocalyptic number.

61745171 is a deficient number, since it is larger than the sum of its proper divisors (1).

61745171 is an equidigital number, since it uses as much as digits as its factorization.

61745171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 32.

The square root of 61745171 is about 7857.8095548314. The cubic root of 61745171 is about 395.2461660562.

Adding to 61745171 its reverse (17154716), we get a palindrome (78899887).

It can be divided in two parts, 61745 and 171, that added together give a palindrome (61916).

The spelling of 61745171 in words is "sixty-one million, seven hundred forty-five thousand, one hundred seventy-one".