243351043 has 6 divisors (see below), whose sum is σ = 263510484. Its totient is φ = 224631576.

The previous prime is 243351029. The next prime is 243351067. The reversal of 243351043 is 340153342.

It is not a de Polignac number, because 243351043 - 2⁵ = 243351011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243350999 and 243351017.

It is not an unprimeable number, because it can be changed into a prime (243351343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 719805 + ... + 720142.

It is an arithmetic number, because the mean of its divisors is an integer number (43918414).

Almost surely, 2^243351043 is an apocalyptic number.

243351043 is a deficient number, since it is larger than the sum of its proper divisors (20159441).

243351043 is a wasteful number, since it uses less digits than its factorization.

243351043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439973 (or 1439960 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 243351043 is about 15599.7129140251. The cubic root of 243351043 is about 624.3254956922.

The spelling of 243351043 in words is "two hundred forty-three million, three hundred fifty-one thousand, forty-three".