231870841 has 4 divisors (see below), whose sum is σ = 232467300. Its totient is φ = 231274384.

The previous prime is 231870839. The next prime is 231870887. The reversal of 231870841 is 148078132.

It is a happy number.

231870841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104632441 + 127238400 = 10229^2 + 11280^2 .

It is a cyclic number.

It is not a de Polignac number, because 231870841 - 2¹ = 231870839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231870797 and 231870806.

It is not an unprimeable number, because it can be changed into a prime (231870641) 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, 297646 + ... + 298423.

It is an arithmetic number, because the mean of its divisors is an integer number (58116825).

Almost surely, 2^231870841 is an apocalyptic number.

It is an amenable number.

231870841 is a deficient number, since it is larger than the sum of its proper divisors (596459).

231870841 is an equidigital number, since it uses as much as digits as its factorization.

231870841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596458.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 231870841 is about 15227.3057695707. The cubic root of 231870841 is about 614.3493159905.

The spelling of 231870841 in words is "two hundred thirty-one million, eight hundred seventy thousand, eight hundred forty-one".