231236141 has 4 divisors (see below), whose sum is σ = 231266784. Its totient is φ = 231205500.

The previous prime is 231236123. The next prime is 231236143. The reversal of 231236141 is 141632132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 231236141 - 2¹⁰ = 231235117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231236143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4856 + ... + 22046.

It is an arithmetic number, because the mean of its divisors is an integer number (57816696).

Almost surely, 2^231236141 is an apocalyptic number.

It is an amenable number.

231236141 is a deficient number, since it is larger than the sum of its proper divisors (30643).

231236141 is a wasteful number, since it uses less digits than its factorization.

231236141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30642.

The product of its digits is 864, while the sum is 23.

The square root of 231236141 is about 15206.4506378050. The cubic root of 231236141 is about 613.7882509970.

Adding to 231236141 its reverse (141632132), we get a palindrome (372868273).

The spelling of 231236141 in words is "two hundred thirty-one million, two hundred thirty-six thousand, one hundred forty-one".