545121300 has 72 divisors (see below), whose sum is σ = 1579711392. Its totient is φ = 145136000.

The previous prime is 545121293. The next prime is 545121307. The reversal of 545121300 is 3121545.

It is an interprime number because it is at equal distance from previous prime (545121293) and next prime (545121307).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545121307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281335 + ... + 283265.

It is an arithmetic number, because the mean of its divisors is an integer number (21940436).

Almost surely, 2^545121300 is an apocalyptic number.

545121300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545121300 is an abundant number, since it is smaller than the sum of its proper divisors (1034590092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545121300 is a wasteful number, since it uses less digits than its factorization.

545121300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889 (or 2882 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 545121300 is about 23347.8328758795. The cubic root of 545121300 is about 816.8915128960.

Adding to 545121300 its reverse (3121545), we get a palindrome (548242845).

The spelling of 545121300 in words is "five hundred forty-five million, one hundred twenty-one thousand, three hundred".