105055143 has 4 divisors (see below), whose sum is σ = 140073528. Its totient is φ = 70036760.

The previous prime is 105055141. The next prime is 105055147. The reversal of 105055143 is 341550501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341550501 = 3 ⋅113850167.

It is a cyclic number.

It is not a de Polignac number, because 105055143 - 2¹ = 105055141 is a prime.

It is a super-2 number, since 2×105055143² = 22073166141500898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105055141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17509188 + ... + 17509193.

It is an arithmetic number, because the mean of its divisors is an integer number (35018382).

Almost surely, 2^105055143 is an apocalyptic number.

105055143 is a deficient number, since it is larger than the sum of its proper divisors (35018385).

105055143 is an equidigital number, since it uses as much as digits as its factorization.

105055143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35018384.

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

The square root of 105055143 is about 10249.6411156684. The cubic root of 105055143 is about 471.8519701814.

The spelling of 105055143 in words is "one hundred five million, fifty-five thousand, one hundred forty-three".