243429413 has 2 divisors, whose sum is σ = 243429414. Its totient is φ = 243429412.

The previous prime is 243429397. The next prime is 243429419. The reversal of 243429413 is 314924342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205692964 + 37736449 = 14342^2 + 6143^2 .

It is a cyclic number.

It is not a de Polignac number, because 243429413 - 2⁴ = 243429397 is a prime.

It is a super-2 number, since 2×243429413² = 118515758227049138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243429413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243429419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121714706 + 121714707.

It is an arithmetic number, because the mean of its divisors is an integer number (121714707).

Almost surely, 2^243429413 is an apocalyptic number.

It is an amenable number.

243429413 is a deficient number, since it is larger than the sum of its proper divisors (1).

243429413 is an equidigital number, since it uses as much as digits as its factorization.

243429413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 243429413 is about 15602.2246170218. The cubic root of 243429413 is about 624.3925088118.

The spelling of 243429413 in words is "two hundred forty-three million, four hundred twenty-nine thousand, four hundred thirteen".