Search a number
-
+
143124121 = 7831811361
BaseRepresentation
bin10001000011111…
…10011010011001
3100222022110101101
420201332122121
5243114432441
622111351401
73355351330
oct1041763231
9328273341
10143124121
11738762a8
123bb22561
132386233a
1415018d17
15c872231
hex887e699

143124121 has 16 divisors (see below), whose sum is σ = 166578048. Its totient is φ = 120441600.

The previous prime is 143124119. The next prime is 143124151. The reversal of 143124121 is 121421341.

143124121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 143124121 - 21 = 143124119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143124151) 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, 104481 + ... + 105841.

It is an arithmetic number, because the mean of its divisors is an integer number (10411128).

Almost surely, 2143124121 is an apocalyptic number.

It is an amenable number.

143124121 is a deficient number, since it is larger than the sum of its proper divisors (23453927).

143124121 is a wasteful number, since it uses less digits than its factorization.

143124121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632.

The product of its digits is 192, while the sum is 19.

The square root of 143124121 is about 11963.4493771654. The cubic root of 143124121 is about 523.0834074683.

Adding to 143124121 its reverse (121421341), we get a palindrome (264545462).

It can be divided in two parts, 1431 and 24121, that added together give a palindrome (25552).

The spelling of 143124121 in words is "one hundred forty-three million, one hundred twenty-four thousand, one hundred twenty-one".

Divisors: 1 7 83 181 581 1267 1361 9527 15023 105161 112963 246341 790741 1724387 20446303 143124121