231888141 has 24 divisors (see below), whose sum is σ = 353496000. Its totient is φ = 146074752.

The previous prime is 231888127. The next prime is 231888161. The reversal of 231888141 is 141888132.

231888141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231888141 - 2⁹ = 231887629 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 231888096 and 231888105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231888101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73525 + ... + 76613.

It is an arithmetic number, because the mean of its divisors is an integer number (14729000).

Almost surely, 2^231888141 is an apocalyptic number.

It is an amenable number.

231888141 is a deficient number, since it is larger than the sum of its proper divisors (121607859).

231888141 is a wasteful number, since it uses less digits than its factorization.

231888141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553 (or 3550 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 231888141 is about 15227.8738174441. The cubic root of 231888141 is about 614.3645945810.

Subtracting from 231888141 its reverse (141888132), we obtain a palindrome (90000009).

It can be divided in two parts, 23188 and 8141, that added together give a square (31329 = 177²).

The spelling of 231888141 in words is "two hundred thirty-one million, eight hundred eighty-eight thousand, one hundred forty-one".