545321153 has 4 divisors (see below), whose sum is σ = 587268948. Its totient is φ = 503373360.

The previous prime is 545321149. The next prime is 545321171. The reversal of 545321153 is 351123545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351123545 = 5 ⋅70224709.

It can be written as a sum of positive squares in 2 ways, for example, as 23107249 + 522213904 = 4807^2 + 22852^2 .

It is a cyclic number.

It is not a de Polignac number, because 545321153 - 2² = 545321149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545321143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20973878 + ... + 20973903.

It is an arithmetic number, because the mean of its divisors is an integer number (146817237).

Almost surely, 2^545321153 is an apocalyptic number.

It is an amenable number.

545321153 is a deficient number, since it is larger than the sum of its proper divisors (41947795).

545321153 is a wasteful number, since it uses less digits than its factorization.

545321153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41947794.

The product of its digits is 9000, while the sum is 29.

The square root of 545321153 is about 23352.1123883900. The cubic root of 545321153 is about 816.9913306016.

Adding to 545321153 its reverse (351123545), we get a palindrome (896444698).

The spelling of 545321153 in words is "five hundred forty-five million, three hundred twenty-one thousand, one hundred fifty-three".