549098149 has 8 divisors (see below), whose sum is σ = 559619192. Its totient is φ = 538626240.

The previous prime is 549098141. The next prime is 549098161. The reversal of 549098149 is 941890945.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4202500 + 544895649 = 2050^2 + 23343^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 549098149 - 2³ = 549098141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549098141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10687 + ... + 34819.

It is an arithmetic number, because the mean of its divisors is an integer number (69952399).

Almost surely, 2^549098149 is an apocalyptic number.

It is an amenable number.

549098149 is a deficient number, since it is larger than the sum of its proper divisors (10521043).

549098149 is a wasteful number, since it uses less digits than its factorization.

549098149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24567.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 549098149 is about 23432.8433827395. The cubic root of 549098149 is about 818.8732039680.

The spelling of 549098149 in words is "five hundred forty-nine million, ninety-eight thousand, one hundred forty-nine".