205041501 has 24 divisors (see below), whose sum is σ = 346357440. Its totient is φ = 114440256.

The previous prime is 205041497. The next prime is 205041517. The reversal of 205041501 is 105140502.

It is not a de Polignac number, because 205041501 - 2² = 205041497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205041601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35136 + ... + 40553.

It is an arithmetic number, because the mean of its divisors is an integer number (14431560).

Almost surely, 2^205041501 is an apocalyptic number.

205041501 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

205041501 is a deficient number, since it is larger than the sum of its proper divisors (141315939).

205041501 is a wasteful number, since it uses less digits than its factorization.

205041501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75745 (or 75742 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 205041501 is about 14319.2702677197. The cubic root of 205041501 is about 589.6766407742.

Subtracting from 205041501 its reverse (105140502), we obtain a palindrome (99900999).

The spelling of 205041501 in words is "two hundred five million, forty-one thousand, five hundred one".