549154917 has 16 divisors (see below), whose sum is σ = 814041280. Its totient is φ = 365888016.

The previous prime is 549154873. The next prime is 549154939. The reversal of 549154917 is 719451945.

549154917 is a `hidden beast` number, since 5 + 4 + 91 + 549 + 17 = 666.

It is not a de Polignac number, because 549154917 - 2⁷ = 549154789 is a prime.

It is a super-2 number, since 2×549154917² = 603142245730553778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549154997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50478 + ... + 60384.

It is an arithmetic number, because the mean of its divisors is an integer number (50877580).

Almost surely, 2^549154917 is an apocalyptic number.

It is an amenable number.

549154917 is a deficient number, since it is larger than the sum of its proper divisors (264886363).

549154917 is a wasteful number, since it uses less digits than its factorization.

549154917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11969 (or 11963 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 549154917 is about 23434.0546427630. The cubic root of 549154917 is about 818.9014224764.

The spelling of 549154917 in words is "five hundred forty-nine million, one hundred fifty-four thousand, nine hundred seventeen".