545949 has 6 divisors (see below), whose sum is σ = 788606. Its totient is φ = 363960.

The previous prime is 545947. The next prime is 545959. The reversal of 545949 is 949545.

It can be written as a sum of positive squares in only one way, i.e., 381924 + 164025 = 618^2 + 405^2 .

It is not a de Polignac number, because 545949 - 2¹ = 545947 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 (545947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30322 + ... + 30339.

2⁵⁴⁵⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

545949 is a deficient number, since it is larger than the sum of its proper divisors (242657).

545949 is a wasteful number, since it uses less digits than its factorization.

545949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60667 (or 60664 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 545949 is about 738.8836173580. The cubic root of 545949 is about 81.7304753754.

It can be divided in two parts, 5 and 45949, that added together give a palindrome (45954).

The spelling of 545949 in words is "five hundred forty-five thousand, nine hundred forty-nine".