549093169 has 2 divisors, whose sum is σ = 549093170. Its totient is φ = 549093168.

The previous prime is 549093157. The next prime is 549093247. The reversal of 549093169 is 961390945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404492544 + 144600625 = 20112^2 + 12025^2 .

It is a cyclic number.

It is not a de Polignac number, because 549093169 - 2⁵ = 549093137 is a prime.

It is a super-2 number, since 2×549093169² = 603006616484925122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (549093109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274546584 + 274546585.

It is an arithmetic number, because the mean of its divisors is an integer number (274546585).

Almost surely, 2^549093169 is an apocalyptic number.

It is an amenable number.

549093169 is a deficient number, since it is larger than the sum of its proper divisors (1).

549093169 is an equidigital number, since it uses as much as digits as its factorization.

549093169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 549093169 is about 23432.7371213864. The cubic root of 549093169 is about 818.8707283930.

The spelling of 549093169 in words is "five hundred forty-nine million, ninety-three thousand, one hundred sixty-nine".