545217012 has 18 divisors (see below), whose sum is σ = 1378187538. Its totient is φ = 181738992.

The previous prime is 545216993. The next prime is 545217017. The reversal of 545217012 is 210712545.

It can be written as a sum of positive squares in only one way, i.e., 424524816 + 120692196 = 20604^2 + 10986^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545217017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7572423 + ... + 7572494.

Almost surely, 2^545217012 is an apocalyptic number.

It is an amenable number.

545217012 is an abundant number, since it is smaller than the sum of its proper divisors (832970526).

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

545217012 is a wasteful number, since it uses less digits than its factorization.

545217012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15144927 (or 15144922 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 545217012 is about 23349.8824836443. The cubic root of 545217012 is about 816.9393198367.

Adding to 545217012 its reverse (210712545), we get a palindrome (755929557).

The spelling of 545217012 in words is "five hundred forty-five million, two hundred seventeen thousand, twelve".