551146 has 4 divisors (see below), whose sum is σ = 826722. Its totient is φ = 275572.

The previous prime is 551143. The next prime is 551179. The reversal of 551146 is 641155.

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., 483025 + 68121 = 695^2 + 261^2 .

It is not an unprimeable number, because it can be changed into a prime (551143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137785 + ... + 137788.

2⁵⁵¹¹⁴⁶ is an apocalyptic number.

551146 is a deficient number, since it is larger than the sum of its proper divisors (275576).

551146 is a wasteful number, since it uses less digits than its factorization.

551146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275575.

The product of its digits is 600, while the sum is 22.

The square root of 551146 is about 742.3920796991. The cubic root of 551146 is about 81.9889931687.

Subtracting 551146 from its reverse (641155), we obtain a palindrome (90009).

The spelling of 551146 in words is "five hundred fifty-one thousand, one hundred forty-six".