549319161 has 8 divisors (see below), whose sum is σ = 732554784. Its totient is φ = 366148160.

The previous prime is 549319159. The next prime is 549319187. The reversal of 549319161 is 161913945.

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 549319161 - 2¹ = 549319159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (549319151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9505 + ... + 34481.

It is an arithmetic number, because the mean of its divisors is an integer number (91569348).

Almost surely, 2^549319161 is an apocalyptic number.

It is an amenable number.

549319161 is a deficient number, since it is larger than the sum of its proper divisors (183235623).

549319161 is a wasteful number, since it uses less digits than its factorization.

549319161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32311.

The product of its digits is 29160, while the sum is 39.

The square root of 549319161 is about 23437.5587679263. The cubic root of 549319161 is about 818.9830547167.

The spelling of 549319161 in words is "five hundred forty-nine million, three hundred nineteen thousand, one hundred sixty-one".