205020541 has 16 divisors (see below), whose sum is σ = 231916608. Its totient is φ = 179612800.

The previous prime is 205020539. The next prime is 205020547. The reversal of 205020541 is 145020502.

It is not a de Polignac number, because 205020541 - 2¹ = 205020539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205020547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34695 + ... + 40171.

It is an arithmetic number, because the mean of its divisors is an integer number (14494788).

Almost surely, 2^205020541 is an apocalyptic number.

It is an amenable number.

205020541 is a deficient number, since it is larger than the sum of its proper divisors (26896067).

205020541 is a wasteful number, since it uses less digits than its factorization.

205020541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 205020541 is about 14318.5383681436. The cubic root of 205020541 is about 589.6565472102.

The spelling of 205020541 in words is "two hundred five million, twenty thousand, five hundred forty-one".