545163121 has 16 divisors (see below), whose sum is σ = 565411840. Its totient is φ = 525404880.

The previous prime is 545163119. The next prime is 545163133. The reversal of 545163121 is 121361545.

545163121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 545163121 - 2¹ = 545163119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545163121.

It is not an unprimeable number, because it can be changed into a prime (545163221) 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, 671806 + ... + 672616.

It is an arithmetic number, because the mean of its divisors is an integer number (35338240).

Almost surely, 2^545163121 is an apocalyptic number.

It is an amenable number.

545163121 is a deficient number, since it is larger than the sum of its proper divisors (20248719).

545163121 is a wasteful number, since it uses less digits than its factorization.

545163121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its digits is 3600, while the sum is 28.

The square root of 545163121 is about 23348.7284664497. The cubic root of 545163121 is about 816.9124026480.

The spelling of 545163121 in words is "five hundred forty-five million, one hundred sixty-three thousand, one hundred twenty-one".