270105 has 16 divisors (see below), whose sum is σ = 471744. Its totient is φ = 130880.

The previous prime is 270097. The next prime is 270121. The reversal of 270105 is 501072.

It is a happy number.

It is not a de Polignac number, because 270105 - 2³ = 270097 is a prime.

It is a super-2 number, since 2×270105² = 145913422050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an alternating number because its digits alternate between even and odd.

270105 is a lucky 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, 654 + ... + 983.

It is an arithmetic number, because the mean of its divisors is an integer number (29484).

2²⁷⁰¹⁰⁵ is an apocalyptic number.

It is an amenable number.

270105 is a deficient number, since it is larger than the sum of its proper divisors (201639).

270105 is a wasteful number, since it uses less digits than its factorization.

270105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656.

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 270105 is about 519.7162687467. The cubic root of 270105 is about 64.6414179722.

Adding to 270105 its reverse (501072), we get a palindrome (771177).

It can be divided in two parts, 2 and 70105, that added together give a palindrome (70107).

The spelling of 270105 in words is "two hundred seventy thousand, one hundred five".