545213 has 2 divisors, whose sum is σ = 545214. Its totient is φ = 545212.

The previous prime is 545203. The next prime is 545231. The reversal of 545213 is 312545.

545213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (545231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465124 + 80089 = 682^2 + 283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272606 + 272607.

It is an arithmetic number, because the mean of its divisors is an integer number (272607).

2⁵⁴⁵²¹³ is an apocalyptic number.

It is an amenable number.

545213 is a deficient number, since it is larger than the sum of its proper divisors (1).

545213 is an equidigital number, since it uses as much as digits as its factorization.

545213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 600, while the sum is 20.

The square root of 545213 is about 738.3854007224. The cubic root of 545213 is about 81.6937316005.

Adding to 545213 its reverse (312545), we get a palindrome (857758).

It can be divided in two parts, 5452 and 13, that multiplied together give a triangular number (70876 = T₃₇₆).

The spelling of 545213 in words is "five hundred forty-five thousand, two hundred thirteen".