545128671 has 16 divisors (see below), whose sum is σ = 744508800. Its totient is φ = 354673248.

The previous prime is 545128669. The next prime is 545128679. The reversal of 545128671 is 176821545.

It is not a de Polignac number, because 545128671 - 2¹ = 545128669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545128679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13525 + ... + 35681.

It is an arithmetic number, because the mean of its divisors is an integer number (46531800).

Almost surely, 2^545128671 is an apocalyptic number.

545128671 is a deficient number, since it is larger than the sum of its proper divisors (199380129).

545128671 is a wasteful number, since it uses less digits than its factorization.

545128671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22358.

The product of its digits is 67200, while the sum is 39.

The square root of 545128671 is about 23347.9907272553. The cubic root of 545128671 is about 816.8951948167.

The spelling of 545128671 in words is "five hundred forty-five million, one hundred twenty-eight thousand, six hundred seventy-one".