105168143 has 4 divisors (see below), whose sum is σ = 105205080. Its totient is φ = 105131208.

The previous prime is 105168131. The next prime is 105168163. The reversal of 105168143 is 341861501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341861501 = 53 ⋅6450217.

It is a cyclic number.

It is not a de Polignac number, because 105168143 - 2¹⁰ = 105167119 is a prime.

It is a super-2 number, since 2×105168143² = 22120676604136898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105168113) 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, 13805 + ... + 20022.

It is an arithmetic number, because the mean of its divisors is an integer number (26301270).

Almost surely, 2^105168143 is an apocalyptic number.

105168143 is a deficient number, since it is larger than the sum of its proper divisors (36937).

105168143 is an equidigital number, since it uses as much as digits as its factorization.

105168143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36936.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 105168143 is about 10255.1520222764. The cubic root of 105168143 is about 472.0210882443.

The spelling of 105168143 in words is "one hundred five million, one hundred sixty-eight thousand, one hundred forty-three".