205126043 has 4 divisors (see below), whose sum is σ = 207430920. Its totient is φ = 202821168.

The previous prime is 205126037. The next prime is 205126049. The reversal of 205126043 is 340621502.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (205126037) and next prime (205126049).

It is a cyclic number.

It is not a de Polignac number, because 205126043 - 2⁴ = 205126027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205126049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152305 + ... + 1152482.

It is an arithmetic number, because the mean of its divisors is an integer number (51857730).

Almost surely, 2^205126043 is an apocalyptic number.

205126043 is a deficient number, since it is larger than the sum of its proper divisors (2304877).

205126043 is an equidigital number, since it uses as much as digits as its factorization.

205126043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304876.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 205126043 is about 14322.2219993966. The cubic root of 205126043 is about 589.7576741134.

Adding to 205126043 its reverse (340621502), we get a palindrome (545747545).

The spelling of 205126043 in words is "two hundred five million, one hundred twenty-six thousand, forty-three".