556146 has 20 divisors (see below), whose sum is σ = 1246542. Its totient is φ = 185328.

The previous prime is 556123. The next prime is 556159. The reversal of 556146 is 641655.

It is a happy number.

556146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 505521 + 50625 = 711^2 + 225^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

556146 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1555 + ... + 1878.

2⁵⁵⁶¹⁴⁶ is an apocalyptic number.

556146 is an abundant number, since it is smaller than the sum of its proper divisors (690396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556146 is a wasteful number, since it uses less digits than its factorization.

556146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447 (or 3438 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 556146 is about 745.7519694912. The cubic root of 556146 is about 82.2361820574.

The spelling of 556146 in words is "five hundred fifty-six thousand, one hundred forty-six".