549137 has 4 divisors (see below), whose sum is σ = 554676. Its totient is φ = 543600.

The previous prime is 549121. The next prime is 549139. The reversal of 549137 is 731945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731945 = 5 ⋅146389.

It can be written as a sum of positive squares in 2 ways, for example, as 440896 + 108241 = 664^2 + 329^2 .

It is a cyclic number.

It is not a de Polignac number, because 549137 - 2⁴ = 549121 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549137.

It is not an unprimeable number, because it can be changed into a prime (549139) 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, 2618 + ... + 2819.

It is an arithmetic number, because the mean of its divisors is an integer number (138669).

2⁵⁴⁹¹³⁷ is an apocalyptic number.

It is an amenable number.

549137 is a deficient number, since it is larger than the sum of its proper divisors (5539).

549137 is a wasteful number, since it uses less digits than its factorization.

549137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5538.

The product of its digits is 3780, while the sum is 29.

The square root of 549137 is about 741.0377858112. The cubic root of 549137 is about 81.8892516419.

It can be divided in two parts, 549 and 137, that added together give a palindrome (686).

The spelling of 549137 in words is "five hundred forty-nine thousand, one hundred thirty-seven".