545279 has 8 divisors (see below), whose sum is σ = 633888. Its totient is φ = 459360.

The previous prime is 545267. The next prime is 545291. The reversal of 545279 is 972545.

Added to its reverse (972545) it gives a square (1517824 = 1232²).

It is an interprime number because it is at equal distance from previous prime (545267) and next prime (545291).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545279 - 2⁸ = 545023 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212 + ... + 1065.

It is an arithmetic number, because the mean of its divisors is an integer number (79236).

2⁵⁴⁵²⁷⁹ is an apocalyptic number.

545279 is a deficient number, since it is larger than the sum of its proper divisors (88609).

545279 is a wasteful number, since it uses less digits than its factorization.

545279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345.

The product of its digits is 12600, while the sum is 32.

The square root of 545279 is about 738.4300914779. The cubic root of 545279 is about 81.6970279078.

Adding to 545279 its reverse (972545), we get a square (1517824 = 1232²).

The spelling of 545279 in words is "five hundred forty-five thousand, two hundred seventy-nine".