545113 has 4 divisors (see below), whose sum is σ = 563940. Its totient is φ = 526288.

The previous prime is 545093. The next prime is 545117. The reversal of 545113 is 311545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 374544 + 170569 = 612^2 + 413^2 .

It is a cyclic number.

It is not a de Polignac number, because 545113 - 2⁹ = 544601 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 (545117) 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, 9370 + ... + 9427.

It is an arithmetic number, because the mean of its divisors is an integer number (140985).

2⁵⁴⁵¹¹³ is an apocalyptic number.

It is an amenable number.

545113 is a deficient number, since it is larger than the sum of its proper divisors (18827).

545113 is a wasteful number, since it uses less digits than its factorization.

545113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18826.

The product of its digits is 300, while the sum is 19.

The square root of 545113 is about 738.3176823021. The cubic root of 545113 is about 81.6887366887.

Adding to 545113 its reverse (311545), we get a palindrome (856658).

The spelling of 545113 in words is "five hundred forty-five thousand, one hundred thirteen".