243011429 has 2 divisors, whose sum is σ = 243011430. Its totient is φ = 243011428.

The previous prime is 243011393. The next prime is 243011441. The reversal of 243011429 is 924110342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189750625 + 53260804 = 13775^2 + 7298^2 .

It is a cyclic number.

It is not a de Polignac number, because 243011429 - 2²⁴ = 226234213 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 243011398 and 243011407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243011929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121505714 + 121505715.

It is an arithmetic number, because the mean of its divisors is an integer number (121505715).

Almost surely, 2^243011429 is an apocalyptic number.

It is an amenable number.

243011429 is a deficient number, since it is larger than the sum of its proper divisors (1).

243011429 is an equidigital number, since it uses as much as digits as its factorization.

243011429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 243011429 is about 15588.8238491555. The cubic root of 243011429 is about 624.0349300042.

The spelling of 243011429 in words is "two hundred forty-three million, eleven thousand, four hundred twenty-nine".