545136568 has 8 divisors (see below), whose sum is σ = 1022131080. Its totient is φ = 272568280.

The previous prime is 545136517. The next prime is 545136617. The reversal of 545136568 is 865631545.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34071028 + ... + 34071043.

It is an arithmetic number, because the mean of its divisors is an integer number (127766385).

Almost surely, 2^545136568 is an apocalyptic number.

It is an amenable number.

545136568 is a deficient number, since it is larger than the sum of its proper divisors (476994512).

545136568 is a wasteful number, since it uses less digits than its factorization.

545136568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68142077 (or 68142073 counting only the distinct ones).

The product of its digits is 432000, while the sum is 43.

The square root of 545136568 is about 23348.1598418376. The cubic root of 545136568 is about 816.8991394452.

The spelling of 545136568 in words is "five hundred forty-five million, one hundred thirty-six thousand, five hundred sixty-eight".