243485629 has 2 divisors, whose sum is σ = 243485630. Its totient is φ = 243485628.

The previous prime is 243485623. The next prime is 243485777. The reversal of 243485629 is 926584342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123254404 + 120231225 = 11102^2 + 10965^2 .

It is a cyclic number.

It is not a de Polignac number, because 243485629 - 2³ = 243485621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243485621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121742814 + 121742815.

It is an arithmetic number, because the mean of its divisors is an integer number (121742815).

Almost surely, 2^243485629 is an apocalyptic number.

It is an amenable number.

243485629 is a deficient number, since it is larger than the sum of its proper divisors (1).

243485629 is an equidigital number, since it uses as much as digits as its factorization.

243485629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 43.

The square root of 243485629 is about 15604.0260509908. The cubic root of 243485629 is about 624.4405694894.

The spelling of 243485629 in words is "two hundred forty-three million, four hundred eighty-five thousand, six hundred twenty-nine".