270745 has 8 divisors (see below), whose sum is σ = 327816. Its totient is φ = 214656.

The previous prime is 270737. The next prime is 270749. The reversal of 270745 is 547072.

It can be written as a sum of positive squares in 4 ways, for example, as 11664 + 259081 = 108^2 + 509^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 270745 - 2³ = 270737 is a prime.

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

It is a Duffinian number.

270745 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270749) by changing a digit.

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, 709 + ... + 1021.

It is an arithmetic number, because the mean of its divisors is an integer number (40977).

2²⁷⁰⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

270745 is a deficient number, since it is larger than the sum of its proper divisors (57071).

270745 is a wasteful number, since it uses less digits than its factorization.

270745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 270745 is about 520.3316250239. The cubic root of 270745 is about 64.6924325472.

The spelling of 270745 in words is "two hundred seventy thousand, seven hundred forty-five".