105505161 has 8 divisors (see below), whose sum is σ = 145524480. Its totient is φ = 67911312.

The previous prime is 105505159. The next prime is 105505171. The reversal of 105505161 is 161505501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105505161 - 2¹ = 105505159 is a prime.

It is a super-2 number, since 2×105505161² = 22262677995271842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105505171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606265 + ... + 606438.

It is an arithmetic number, because the mean of its divisors is an integer number (18190560).

Almost surely, 2^105505161 is an apocalyptic number.

It is an amenable number.

105505161 is a deficient number, since it is larger than the sum of its proper divisors (40019319).

105505161 is a wasteful number, since it uses less digits than its factorization.

105505161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212735.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 105505161 is about 10271.5705225637. The cubic root of 105505161 is about 472.5247578080.

The spelling of 105505161 in words is "one hundred five million, five hundred five thousand, one hundred sixty-one".