205047419 has 2 divisors, whose sum is σ = 205047420. Its totient is φ = 205047418.

The previous prime is 205047391. The next prime is 205047431. The reversal of 205047419 is 914740502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205047419 - 2⁸ = 205047163 is a prime.

It is a super-2 number, since 2×205047419² = 84088888077123122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (205047439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102523709 + 102523710.

It is an arithmetic number, because the mean of its divisors is an integer number (102523710).

Almost surely, 2^205047419 is an apocalyptic number.

205047419 is a deficient number, since it is larger than the sum of its proper divisors (1).

205047419 is an equidigital number, since it uses as much as digits as its factorization.

205047419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 205047419 is about 14319.4769108372. The cubic root of 205047419 is about 589.6823138904.

The spelling of 205047419 in words is "two hundred five million, forty-seven thousand, four hundred nineteen".