270045 has 24 divisors (see below), whose sum is σ = 497016. Its totient is φ = 135168.
The previous prime is 270037. The next prime is 270059. The reversal of 270045 is 540072.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 45369 + 224676 = 213^2 + 474^2 .
It is not a de Polignac number, because 270045 - 23 = 270037 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 589 + ... + 941.
It is an arithmetic number, because the mean of its divisors is an integer number (20709).
2270045 is an apocalyptic number.
It is an amenable number.
270045 is a deficient number, since it is larger than the sum of its proper divisors (226971).
270045 is a wasteful number, since it uses less digits than its factorization.
270045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 381 (or 378 counting only the distinct ones).
The product of its (nonzero) digits is 280, while the sum is 18.
The square root of 270045 is about 519.6585417368. The cubic root of 270045 is about 64.6366312260.
The spelling of 270045 in words is "two hundred seventy thousand, forty-five".
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