205254043 has 2 divisors, whose sum is σ = 205254044. Its totient is φ = 205254042.

The previous prime is 205254019. The next prime is 205254053. The reversal of 205254043 is 340452502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205254043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205253999 and 205254017.

It is not a weakly prime, because it can be changed into another prime (205254053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102627021 + 102627022.

It is an arithmetic number, because the mean of its divisors is an integer number (102627022).

Almost surely, 2^205254043 is an apocalyptic number.

205254043 is a deficient number, since it is larger than the sum of its proper divisors (1).

205254043 is an equidigital number, since it uses as much as digits as its factorization.

205254043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 205254043 is about 14326.6898828725. The cubic root of 205254043 is about 589.8803194956.

The spelling of 205254043 in words is "two hundred five million, two hundred fifty-four thousand, forty-three".