270645 has 8 divisors (see below), whose sum is σ = 433056. Its totient is φ = 144336.

The previous prime is 270631. The next prime is 270653. The reversal of 270645 is 546072.

It is a happy number.

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

It is not a de Polignac number, because 270645 - 2⁹ = 270133 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9007 + ... + 9036.

It is an arithmetic number, because the mean of its divisors is an integer number (54132).

2²⁷⁰⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

270645 is a deficient number, since it is larger than the sum of its proper divisors (162411).

270645 is a wasteful number, since it uses less digits than its factorization.

270645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18051.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 270645 is about 520.2355235852. The cubic root of 270645 is about 64.6844668232.

The spelling of 270645 in words is "two hundred seventy thousand, six hundred forty-five".