105135243 has 16 divisors (see below), whose sum is σ = 142062336. Its totient is φ = 69154400.

The previous prime is 105135221. The next prime is 105135253. The reversal of 105135243 is 342531501.

It is a cyclic number.

It is not a de Polignac number, because 105135243 - 2¹³ = 105127051 is a prime.

It is a super-2 number, since 2×105135243² = 22106838641338098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105135253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141130 + ... + 141872.

It is an arithmetic number, because the mean of its divisors is an integer number (8878896).

Almost surely, 2^105135243 is an apocalyptic number.

105135243 is a deficient number, since it is larger than the sum of its proper divisors (36927093).

105135243 is a wasteful number, since it uses less digits than its factorization.

105135243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 105135243 is about 10253.5478250213. The cubic root of 105135243 is about 471.9718619513.

Adding to 105135243 its reverse (342531501), we get a palindrome (447666744).

The spelling of 105135243 in words is "one hundred five million, one hundred thirty-five thousand, two hundred forty-three".