105505143 has 8 divisors (see below), whose sum is σ = 141078000. Its totient is φ = 70134528.

The previous prime is 105505129. The next prime is 105505159. The reversal of 105505143 is 341505501.

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

It is not a de Polignac number, because 105505143 - 2⁶ = 105505079 is a prime.

It is a super-2 number, since 2×105505143² = 22262670398900898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105505943) 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, 49338 + ... + 51431.

It is an arithmetic number, because the mean of its divisors is an integer number (17634750).

Almost surely, 2^105505143 is an apocalyptic number.

105505143 is a deficient number, since it is larger than the sum of its proper divisors (35572857).

105505143 is a wasteful number, since it uses less digits than its factorization.

105505143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101121.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 105505143 is about 10271.5696463588. The cubic root of 105505143 is about 472.5247309359.

The spelling of 105505143 in words is "one hundred five million, five hundred five thousand, one hundred forty-three".