205010601 has 4 divisors (see below), whose sum is σ = 273347472. Its totient is φ = 136673732.

The previous prime is 205010591. The next prime is 205010621. The reversal of 205010601 is 106010502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205010601 - 2¹¹ = 205008553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205010621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34168431 + ... + 34168436.

It is an arithmetic number, because the mean of its divisors is an integer number (68336868).

Almost surely, 2^205010601 is an apocalyptic number.

It is an amenable number.

205010601 is a deficient number, since it is larger than the sum of its proper divisors (68336871).

205010601 is an equidigital number, since it uses as much as digits as its factorization.

205010601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68336870.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 205010601 is about 14318.1912614687. The cubic root of 205010601 is about 589.6470176272.

Subtracting from 205010601 its reverse (106010502), we obtain a palindrome (99000099).

The spelling of 205010601 in words is "two hundred five million, ten thousand, six hundred one".