269405243 has 2 divisors, whose sum is σ = 269405244. Its totient is φ = 269405242.

The previous prime is 269405209. The next prime is 269405281. The reversal of 269405243 is 342504962.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-269405243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (269405293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134702621 + 134702622.

It is an arithmetic number, because the mean of its divisors is an integer number (134702622).

Almost surely, 2^269405243 is an apocalyptic number.

269405243 is a deficient number, since it is larger than the sum of its proper divisors (1).

269405243 is an equidigital number, since it uses as much as digits as its factorization.

269405243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 269405243 is about 16413.5688684698. The cubic root of 269405243 is about 645.8554784424.

The spelling of 269405243 in words is "two hundred sixty-nine million, four hundred five thousand, two hundred forty-three".