549155 has 4 divisors (see below), whose sum is σ = 658992. Its totient is φ = 439320.

The previous prime is 549149. The next prime is 549161. The reversal of 549155 is 551945.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (549149) and next prime (549161).

It is not a de Polignac number, because 549155 - 2⁴ = 549139 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54911 + ... + 54920.

It is an arithmetic number, because the mean of its divisors is an integer number (164748).

2⁵⁴⁹¹⁵⁵ is an apocalyptic number.

549155 is a deficient number, since it is larger than the sum of its proper divisors (109837).

549155 is a wasteful number, since it uses less digits than its factorization.

549155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109836.

The product of its digits is 4500, while the sum is 29.

The square root of 549155 is about 741.0499308414. The cubic root of 549155 is about 81.8901463733.

The spelling of 549155 in words is "five hundred forty-nine thousand, one hundred fifty-five".