105320143 has 4 divisors (see below), whose sum is σ = 105492568. Its totient is φ = 105147720.

The previous prime is 105320119. The next prime is 105320177. The reversal of 105320143 is 341023501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105320143 - 2¹³ = 105311951 is a prime.

It is a super-2 number, since 2×105320143² = 22184665043080898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105320143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105320183) 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, 85293 + ... + 86518.

It is an arithmetic number, because the mean of its divisors is an integer number (26373142).

Almost surely, 2^105320143 is an apocalyptic number.

105320143 is a deficient number, since it is larger than the sum of its proper divisors (172425).

105320143 is an equidigital number, since it uses as much as digits as its factorization.

105320143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172424.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 105320143 is about 10262.5602556087. The cubic root of 105320143 is about 472.2483835246.

Adding to 105320143 its reverse (341023501), we get a palindrome (446343644).

The spelling of 105320143 in words is "one hundred five million, three hundred twenty thousand, one hundred forty-three".