205266101 has 8 divisors (see below), whose sum is σ = 216266400. Its totient is φ = 194285520.

The previous prime is 205266029. The next prime is 205266107. The reversal of 205266101 is 101662502.

205266101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205266101 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 (205266107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19631 + ... + 28211.

It is an arithmetic number, because the mean of its divisors is an integer number (27033300).

Almost surely, 2^205266101 is an apocalyptic number.

It is an amenable number.

205266101 is a deficient number, since it is larger than the sum of its proper divisors (11000299).

205266101 is a wasteful number, since it uses less digits than its factorization.

205266101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9859.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 205266101 is about 14327.1106996491. The cubic root of 205266101 is about 589.8918704457.

The spelling of 205266101 in words is "two hundred five million, two hundred sixty-six thousand, one hundred one".