545188 has 12 divisors (see below), whose sum is σ = 1090432. Its totient is φ = 233640.

The previous prime is 545161. The next prime is 545189. The reversal of 545188 is 881545.

545188 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (545189) 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 3 ways as a sum of consecutive naturals, for example, 9708 + ... + 9763.

2⁵⁴⁵¹⁸⁸ is an apocalyptic number.

It is an amenable number.

545188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545188 is a wasteful number, since it uses less digits than its factorization.

545188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19482 (or 19480 counting only the distinct ones).

The product of its digits is 6400, while the sum is 31.

The square root of 545188 is about 738.3684716996. The cubic root of 545188 is about 81.6924829298.

The spelling of 545188 in words is "five hundred forty-five thousand, one hundred eighty-eight".