243245355407 has 2 divisors, whose sum is σ = 243245355408. Its totient is φ = 243245355406.

The previous prime is 243245355361. The next prime is 243245355467. The reversal of 243245355407 is 704553542342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243245355407 - 2¹⁴ = 243245339023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243245355467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121622677703 + 121622677704.

It is an arithmetic number, because the mean of its divisors is an integer number (121622677704).

Almost surely, 2^243245355407 is an apocalyptic number.

243245355407 is a deficient number, since it is larger than the sum of its proper divisors (1).

243245355407 is an equidigital number, since it uses as much as digits as its factorization.

243245355407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016000, while the sum is 44.

Adding to 243245355407 its reverse (704553542342), we get a palindrome (947798897749).

The spelling of 243245355407 in words is "two hundred forty-three billion, two hundred forty-five million, three hundred fifty-five thousand, four hundred seven".