675245 has 4 divisors (see below), whose sum is σ = 810300. Its totient is φ = 540192.

The previous prime is 675239. The next prime is 675247. The reversal of 675245 is 542576.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114244 + 561001 = 338^2 + 749^2 .

It is a cyclic number.

It is not a de Polignac number, because 675245 - 2¹⁶ = 609709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 67520 + ... + 67529.

It is an arithmetic number, because the mean of its divisors is an integer number (202575).

2⁶⁷⁵²⁴⁵ is an apocalyptic number.

It is an amenable number.

675245 is a deficient number, since it is larger than the sum of its proper divisors (135055).

675245 is a wasteful number, since it uses less digits than its factorization.

675245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135054.

The product of its digits is 8400, while the sum is 29.

The square root of 675245 is about 821.7329249823. The cubic root of 675245 is about 87.7311439640.

The spelling of 675245 in words is "six hundred seventy-five thousand, two hundred forty-five".