549146519 has 4 divisors (see below), whose sum is σ = 549958344. Its totient is φ = 548334696.

The previous prime is 549146513. The next prime is 549146527. The reversal of 549146519 is 915641945.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 549146519 - 2⁸ = 549146263 is a prime.

It is a super-2 number, since 2×549146519² = 603123798659634722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 549146519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549146513) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 404897 + ... + 406250.

It is an arithmetic number, because the mean of its divisors is an integer number (137489586).

Almost surely, 2^549146519 is an apocalyptic number.

549146519 is a deficient number, since it is larger than the sum of its proper divisors (811825).

549146519 is an equidigital number, since it uses as much as digits as its factorization.

549146519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811824.

The product of its digits is 194400, while the sum is 44.

The square root of 549146519 is about 23433.8754584042. The cubic root of 549146519 is about 818.8972480810.

The spelling of 549146519 in words is "five hundred forty-nine million, one hundred forty-six thousand, five hundred nineteen".