549995146 has 4 divisors (see below), whose sum is σ = 824992722. Its totient is φ = 274997572.

The previous prime is 549995119. The next prime is 549995167. The reversal of 549995146 is 641599945.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 417998025 + 131997121 = 20445^2 + 11489^2 .

It is a super-2 number, since 2×549995146² = 604989321247122632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 549995093 and 549995102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137498785 + ... + 137498788.

Almost surely, 2^549995146 is an apocalyptic number.

549995146 is a deficient number, since it is larger than the sum of its proper divisors (274997576).

549995146 is a wasteful number, since it uses less digits than its factorization.

549995146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274997575.

The product of its digits is 1749600, while the sum is 52.

The square root of 549995146 is about 23451.9753112611. The cubic root of 549995146 is about 819.3188602993.

The spelling of 549995146 in words is "five hundred forty-nine million, nine hundred ninety-five thousand, one hundred forty-six".