231644341 has 4 divisors (see below), whose sum is σ = 236572992. Its totient is φ = 226715692.

The previous prime is 231644323. The next prime is 231644359. The reversal of 231644341 is 143446132.

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.

It is an interprime number because it is at equal distance from previous prime (231644323) and next prime (231644359).

It is a cyclic number.

It is not a de Polignac number, because 231644341 - 2¹⁵ = 231611573 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 (231644321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2464255 + ... + 2464348.

It is an arithmetic number, because the mean of its divisors is an integer number (59143248).

Almost surely, 2^231644341 is an apocalyptic number.

It is an amenable number.

231644341 is a deficient number, since it is larger than the sum of its proper divisors (4928651).

231644341 is an equidigital number, since it uses as much as digits as its factorization.

231644341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928650.

The product of its digits is 6912, while the sum is 28.

The square root of 231644341 is about 15219.8666551320. The cubic root of 231644341 is about 614.1492111202.

It can be divided in two parts, 2316443 and 41, that added together give a square (2316484 = 1522²).

The spelling of 231644341 in words is "two hundred thirty-one million, six hundred forty-four thousand, three hundred forty-one".