205032101 has 4 divisors (see below), whose sum is σ = 207145932. Its totient is φ = 202918272.

The previous prime is 205032083. The next prime is 205032137. The reversal of 205032101 is 101230502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101230502 = 2 ⋅50615251.

It can be written as a sum of positive squares in 2 ways, for example, as 134908225 + 70123876 = 11615^2 + 8374^2 .

It is a cyclic number.

It is not a de Polignac number, because 205032101 - 2¹⁴ = 205015717 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 (205032181) 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, 1056770 + ... + 1056963.

It is an arithmetic number, because the mean of its divisors is an integer number (51786483).

Almost surely, 2^205032101 is an apocalyptic number.

It is an amenable number.

205032101 is a deficient number, since it is larger than the sum of its proper divisors (2113831).

205032101 is an equidigital number, since it uses as much as digits as its factorization.

205032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113830.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 205032101 is about 14318.9420349410. The cubic root of 205032101 is about 589.6676295170.

Adding to 205032101 its reverse (101230502), we get a palindrome (306262603).

The spelling of 205032101 in words is "two hundred five million, thirty-two thousand, one hundred one".