549117197 has 2 divisors, whose sum is σ = 549117198. Its totient is φ = 549117196.

The previous prime is 549117143. The next prime is 549117211. The reversal of 549117197 is 791711945.

549117197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 506880196 + 42237001 = 22514^2 + 6499^2 .

It is a cyclic number.

It is not a de Polignac number, because 549117197 - 2¹⁰ = 549116173 is a prime.

It is a super-2 number, since 2×549117197² = 603059392082273618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549114197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274558598 + 274558599.

It is an arithmetic number, because the mean of its divisors is an integer number (274558599).

Almost surely, 2^549117197 is an apocalyptic number.

It is an amenable number.

549117197 is a deficient number, since it is larger than the sum of its proper divisors (1).

549117197 is an equidigital number, since it uses as much as digits as its factorization.

549117197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 44.

The square root of 549117197 is about 23433.2498173002. The cubic root of 549117197 is about 818.8826726555.

The spelling of 549117197 in words is "five hundred forty-nine million, one hundred seventeen thousand, one hundred ninety-seven".