205536101 has 4 divisors (see below), whose sum is σ = 208603872. Its totient is φ = 202468332.

The previous prime is 205536083. The next prime is 205536131. The reversal of 205536101 is 101635502.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101635502 = 2 ⋅50817751.

It is a cyclic number.

It is not a de Polignac number, because 205536101 - 2²² = 201341797 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 (205536131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533785 + ... + 1533918.

It is an arithmetic number, because the mean of its divisors is an integer number (52150968).

Almost surely, 2^205536101 is an apocalyptic number.

It is an amenable number.

205536101 is a deficient number, since it is larger than the sum of its proper divisors (3067771).

205536101 is an equidigital number, since it uses as much as digits as its factorization.

205536101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067770.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 205536101 is about 14336.5302985067. The cubic root of 205536101 is about 590.1503983145.

The spelling of 205536101 in words is "two hundred five million, five hundred thirty-six thousand, one hundred one".