549197 has 4 divisors (see below), whose sum is σ = 599136. Its totient is φ = 499260.

The previous prime is 549193. The next prime is 549203. The reversal of 549197 is 791945.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 549197 - 2² = 549193 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 (549193) 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, 24953 + ... + 24974.

It is an arithmetic number, because the mean of its divisors is an integer number (149784).

2⁵⁴⁹¹⁹⁷ is an apocalyptic number.

It is an amenable number.

549197 is a deficient number, since it is larger than the sum of its proper divisors (49939).

549197 is a wasteful number, since it uses less digits than its factorization.

549197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49938.

The product of its digits is 11340, while the sum is 35.

The square root of 549197 is about 741.0782684710. The cubic root of 549197 is about 81.8922340040.

The spelling of 549197 in words is "five hundred forty-nine thousand, one hundred ninety-seven".