545253121 has 12 divisors (see below), whose sum is σ = 661960768. Its totient is φ = 439866432.

The previous prime is 545253119. The next prime is 545253139. The reversal of 545253121 is 121352545.

545253121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 545253121 - 2¹ = 545253119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545253121.

It is not an unprimeable number, because it can be changed into a prime (545253151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132741 + ... + 136786.

Almost surely, 2^545253121 is an apocalyptic number.

It is an amenable number.

545253121 is a deficient number, since it is larger than the sum of its proper divisors (116707647).

545253121 is a wasteful number, since it uses less digits than its factorization.

545253121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269568 (or 269551 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 545253121 is about 23350.6556867254. The cubic root of 545253121 is about 816.9573543747.

The spelling of 545253121 in words is "five hundred forty-five million, two hundred fifty-three thousand, one hundred twenty-one".