205540741 has 12 divisors (see below), whose sum is σ = 239378112. Its totient is φ = 175971768.

The previous prime is 205540711. The next prime is 205540759. The reversal of 205540741 is 147045502.

It is not a de Polignac number, because 205540741 - 2¹¹ = 205538693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205540711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52146 + ... + 55948.

It is an arithmetic number, because the mean of its divisors is an integer number (19948176).

Almost surely, 2^205540741 is an apocalyptic number.

It is an amenable number.

205540741 is a deficient number, since it is larger than the sum of its proper divisors (33837371).

205540741 is a wasteful number, since it uses less digits than its factorization.

205540741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920 (or 4913 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 205540741 is about 14336.6921219645. The cubic root of 205540741 is about 590.1548391844.

The spelling of 205540741 in words is "two hundred five million, five hundred forty thousand, seven hundred forty-one".