549845197 has 16 divisors (see below), whose sum is σ = 617307264. Its totient is φ = 485352000.

The previous prime is 549845173. The next prime is 549845207. The reversal of 549845197 is 791548945.

549845197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 549845197 - 2⁷ = 549845069 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 (549845117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255747 + ... + 257887.

It is an arithmetic number, because the mean of its divisors is an integer number (38581704).

Almost surely, 2^549845197 is an apocalyptic number.

It is an amenable number.

549845197 is a deficient number, since it is larger than the sum of its proper divisors (67462067).

549845197 is a wasteful number, since it uses less digits than its factorization.

549845197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820.

The product of its digits is 1814400, while the sum is 52.

The square root of 549845197 is about 23448.7781558016. The cubic root of 549845197 is about 819.2443946661.

The spelling of 549845197 in words is "five hundred forty-nine million, eight hundred forty-five thousand, one hundred ninety-seven".