205770126 has 32 divisors (see below), whose sum is σ = 425696256. Its totient is φ = 66240000.

The previous prime is 205770119. The next prime is 205770139. The reversal of 205770126 is 621077502.

205770126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 205770093 and 205770102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127726 + ... + 129326.

It is an arithmetic number, because the mean of its divisors is an integer number (13303008).

Almost surely, 2^205770126 is an apocalyptic number.

205770126 is an abundant number, since it is smaller than the sum of its proper divisors (219926130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205770126 is a wasteful number, since it uses less digits than its factorization.

205770126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 205770126 is about 14344.6898188842. The cubic root of 205770126 is about 590.3742966333.

The spelling of 205770126 in words is "two hundred five million, seven hundred seventy thousand, one hundred twenty-six".