545101 has 4 divisors (see below), whose sum is σ = 554400. Its totient is φ = 535804.

The previous prime is 545093. The next prime is 545117. The reversal of 545101 is 101545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 545101 - 2³ = 545093 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 (545131) 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, 4561 + ... + 4678.

It is an arithmetic number, because the mean of its divisors is an integer number (138600).

2⁵⁴⁵¹⁰¹ is an apocalyptic number.

It is an amenable number.

545101 is a deficient number, since it is larger than the sum of its proper divisors (9299).

545101 is an equidigital number, since it uses as much as digits as its factorization.

545101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9298.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 545101 is about 738.3095556743. The cubic root of 545101 is about 81.6881372582.

Adding to 545101 its reverse (101545), we get a palindrome (646646).

Subtracting from 545101 its reverse (101545), we obtain a square (443556 = 666²).

It can be divided in two parts, 545 and 101, that added together give a palindrome (646).

The spelling of 545101 in words is "five hundred forty-five thousand, one hundred one".