545459 has 4 divisors (see below), whose sum is σ = 548400. Its totient is φ = 542520.

The previous prime is 545449. The next prime is 545473. The reversal of 545459 is 954545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954545 = 5 ⋅190909.

It is a cyclic number.

It is not a de Polignac number, because 545459 - 2⁴ = 545443 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (545429) 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, 1172 + ... + 1569.

It is an arithmetic number, because the mean of its divisors is an integer number (137100).

2⁵⁴⁵⁴⁵⁹ is an apocalyptic number.

545459 is a deficient number, since it is larger than the sum of its proper divisors (2941).

545459 is a wasteful number, since it uses less digits than its factorization.

545459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940.

The product of its digits is 18000, while the sum is 32.

The square root of 545459 is about 738.5519616114. The cubic root of 545459 is about 81.7060164850.

The spelling of 545459 in words is "five hundred forty-five thousand, four hundred fifty-nine".