549451145 has 8 divisors (see below), whose sum is σ = 661776000. Its totient is φ = 437937840.

The previous prime is 549451109. The next prime is 549451151. The reversal of 549451145 is 541154945.

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

It is not a de Polignac number, because 549451145 - 2²² = 545256841 is a prime.

It is a super-2 number, since 2×549451145² = 603793121483622050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 549451099 and 549451108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201395 + ... + 204104.

It is an arithmetic number, because the mean of its divisors is an integer number (82722000).

Almost surely, 2^549451145 is an apocalyptic number.

It is an amenable number.

549451145 is a deficient number, since it is larger than the sum of its proper divisors (112324855).

549451145 is a wasteful number, since it uses less digits than its factorization.

549451145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405775.

The product of its digits is 72000, while the sum is 38.

The square root of 549451145 is about 23440.3742504253. The cubic root of 549451145 is about 819.0486413624.

The spelling of 549451145 in words is "five hundred forty-nine million, four hundred fifty-one thousand, one hundred forty-five".