545205101 has 16 divisors (see below), whose sum is σ = 644856960. Its totient is φ = 451189440.

The previous prime is 545205097. The next prime is 545205103. The reversal of 545205101 is 101502545.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 545205101 - 2² = 545205097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545205103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25895 + ... + 41963.

It is an arithmetic number, because the mean of its divisors is an integer number (40303560).

Almost surely, 2^545205101 is an apocalyptic number.

It is an amenable number.

545205101 is a deficient number, since it is larger than the sum of its proper divisors (99651859).

545205101 is a wasteful number, since it uses less digits than its factorization.

545205101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16244.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 545205101 is about 23349.6274274345. The cubic root of 545205101 is about 816.9333707468.

Adding to 545205101 its reverse (101502545), we get a palindrome (646707646).

The spelling of 545205101 in words is "five hundred forty-five million, two hundred five thousand, one hundred one".