243041383 has 4 divisors (see below), whose sum is σ = 261736888. Its totient is φ = 224345880.

The previous prime is 243041353. The next prime is 243041387. The reversal of 243041383 is 383140342.

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

It is a cyclic number.

It is not a de Polignac number, because 243041383 - 2¹³ = 243033191 is a prime.

It is a super-2 number, since 2×243041383² = 118138227701105378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243041387) 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, 9347733 + ... + 9347758.

It is an arithmetic number, because the mean of its divisors is an integer number (65434222).

Almost surely, 2^243041383 is an apocalyptic number.

243041383 is a deficient number, since it is larger than the sum of its proper divisors (18695505).

243041383 is a wasteful number, since it uses less digits than its factorization.

243041383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18695504.

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

The square root of 243041383 is about 15589.7845719561. The cubic root of 243041383 is about 624.0605688180.

The spelling of 243041383 in words is "two hundred forty-three million, forty-one thousand, three hundred eighty-three".