61171105 has 16 divisors (see below), whose sum is σ = 75227328. Its totient is φ = 47736000.

The previous prime is 61171079. The next prime is 61171109. The reversal of 61171105 is 50117116.

61171105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61171105 - 2⁵ = 61171073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61171109) 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 in 15 ways as a sum of consecutive naturals, for example, 39190 + ... + 40720.

It is an arithmetic number, because the mean of its divisors is an integer number (4701708).

Almost surely, 2^61171105 is an apocalyptic number.

It is an amenable number.

61171105 is a deficient number, since it is larger than the sum of its proper divisors (14056223).

61171105 is a wasteful number, since it uses less digits than its factorization.

61171105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 61171105 is about 7821.1958804265. The cubic root of 61171105 is about 394.0174371937.

The spelling of 61171105 in words is "sixty-one million, one hundred seventy-one thousand, one hundred five".