549167197 has 2 divisors, whose sum is σ = 549167198. Its totient is φ = 549167196.

The previous prime is 549167191. The next prime is 549167237. The reversal of 549167197 is 791761945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367834041 + 181333156 = 19179^2 + 13466^2 .

It is a cyclic number.

It is not a de Polignac number, because 549167197 - 2¹⁵ = 549134429 is a prime.

It is a super-2 number, since 2×549167197² = 603169220521673618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 549167197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549167191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274583598 + 274583599.

It is an arithmetic number, because the mean of its divisors is an integer number (274583599).

Almost surely, 2^549167197 is an apocalyptic number.

It is an amenable number.

549167197 is a deficient number, since it is larger than the sum of its proper divisors (1).

549167197 is an equidigital number, since it uses as much as digits as its factorization.

549167197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 49.

The square root of 549167197 is about 23434.3166531478. The cubic root of 549167197 is about 818.9075264215.

The spelling of 549167197 in words is "five hundred forty-nine million, one hundred sixty-seven thousand, one hundred ninety-seven".