545100000 has 288 divisors, whose sum is σ = 1889879040. Its totient is φ = 137280000.

The previous prime is 545099993. The next prime is 545100029. The reversal of 545100000 is 1545.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6899961 + ... + 6900039.

It is an arithmetic number, because the mean of its divisors is an integer number (6562080).

Almost surely, 2^545100000 is an apocalyptic number.

545100000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944939520).

545100000 is an abundant number, since it is smaller than the sum of its proper divisors (1344779040).

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

545100000 is an equidigital number, since it uses as much as digits as its factorization.

545100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 545100000 is about 23347.3767263048. The cubic root of 545100000 is about 816.8808730526.

Adding to 545100000 its reverse (1545), we get a palindrome (545101545).

The spelling of 545100000 in words is "five hundred forty-five million, one hundred thousand".