270000205 has 16 divisors (see below), whose sum is σ = 343721664. Its totient is φ = 202901760.

The previous prime is 270000193. The next prime is 270000221. The reversal of 270000205 is 502000072.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-270000205 is a prime.

It is a super-2 number, since 2×270000205² = 145800221400084050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45754 + ... + 51316.

It is an arithmetic number, because the mean of its divisors is an integer number (21482604).

Almost surely, 2^270000205 is an apocalyptic number.

It is an amenable number.

270000205 is a deficient number, since it is larger than the sum of its proper divisors (73721459).

270000205 is a wasteful number, since it uses less digits than its factorization.

270000205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156.

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 270000205 is about 16431.6829631051. The cubic root of 270000205 is about 646.3305705870.

Adding to 270000205 its reverse (502000072), we get a palindrome (772000277).

The spelling of 270000205 in words is "two hundred seventy million, two hundred five", and thus it is an aban number.