205001126 has 16 divisors (see below), whose sum is σ = 337201488. Its totient is φ = 92697600.

The previous prime is 205001123. The next prime is 205001179. The reversal of 205001126 is 621100502.

It is a super-2 number, since 2×205001126² = 84050923322535752, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205001123) 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 in 7 ways as a sum of consecutive naturals, for example, 19895 + ... + 28386.

It is an arithmetic number, because the mean of its divisors is an integer number (21075093).

Almost surely, 2^205001126 is an apocalyptic number.

205001126 is a deficient number, since it is larger than the sum of its proper divisors (132200362).

205001126 is a wasteful number, since it uses less digits than its factorization.

205001126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48487.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 205001126 is about 14317.8603848480. The cubic root of 205001126 is about 589.6379335578.

Adding to 205001126 its reverse (621100502), we get a palindrome (826101628).

The spelling of 205001126 in words is "two hundred five million, one thousand, one hundred twenty-six".