243225043 has 2 divisors, whose sum is σ = 243225044. Its totient is φ = 243225042.

The previous prime is 243225029. The next prime is 243225049. The reversal of 243225043 is 340522342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243225043 - 2²¹ = 241127891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243224999 and 243225017.

It is not a weakly prime, because it can be changed into another prime (243225049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121612521 + 121612522.

It is an arithmetic number, because the mean of its divisors is an integer number (121612522).

Almost surely, 2^243225043 is an apocalyptic number.

243225043 is a deficient number, since it is larger than the sum of its proper divisors (1).

243225043 is an equidigital number, since it uses as much as digits as its factorization.

243225043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 243225043 is about 15595.6738552715. The cubic root of 243225043 is about 624.2177246409.

Adding to 243225043 its reverse (340522342), we get a palindrome (583747385).

The spelling of 243225043 in words is "two hundred forty-three million, two hundred twenty-five thousand, forty-three".