545000100 has 72 divisors (see below), whose sum is σ = 1579273920. Its totient is φ = 145111680.

The previous prime is 545000087. The next prime is 545000101. The reversal of 545000100 is 1000545.

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

It is a self number, because there is not a number n which added to its sum of digits gives 545000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545000101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318046 + ... + 319754.

It is an arithmetic number, because the mean of its divisors is an integer number (21934360).

Almost surely, 2^545000100 is an apocalyptic number.

545000100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545000100 is an abundant number, since it is smaller than the sum of its proper divisors (1034273820).

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

545000100 is a wasteful number, since it uses less digits than its factorization.

545000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789 (or 2782 counting only the distinct ones).

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

The square root of 545000100 is about 23345.2372016221. The cubic root of 545000100 is about 816.8309669895.

Adding to 545000100 its reverse (1000545), we get a palindrome (546000645).

The spelling of 545000100 in words is "five hundred forty-five million, one hundred", and thus it is an aban number.