243719041 has 4 divisors (see below), whose sum is σ = 247057732. Its totient is φ = 240380352.

The previous prime is 243719009. The next prime is 243719051. The reversal of 243719041 is 140917342.

243719041 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 98010000 + 145709041 = 9900^2 + 12071^2 .

It is a cyclic number.

It is not a de Polignac number, because 243719041 - 2⁵ = 243719009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243718994 and 243719012.

It is not an unprimeable number, because it can be changed into a prime (243719051) 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, 1669236 + ... + 1669381.

It is an arithmetic number, because the mean of its divisors is an integer number (61764433).

Almost surely, 2^243719041 is an apocalyptic number.

It is an amenable number.

243719041 is a deficient number, since it is larger than the sum of its proper divisors (3338691).

243719041 is an equidigital number, since it uses as much as digits as its factorization.

243719041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338690.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 243719041 is about 15611.5034830089. The cubic root of 243719041 is about 624.6400410471.

The spelling of 243719041 in words is "two hundred forty-three million, seven hundred nineteen thousand, forty-one".