556142 has 4 divisors (see below), whose sum is σ = 834216. Its totient is φ = 278070.

The previous prime is 556123. The next prime is 556159. The reversal of 556142 is 241655.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139034 + ... + 139037.

It is an arithmetic number, because the mean of its divisors is an integer number (208554).

2⁵⁵⁶¹⁴² is an apocalyptic number.

556142 is a deficient number, since it is larger than the sum of its proper divisors (278074).

556142 is a wasteful number, since it uses less digits than its factorization.

556142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278073.

The product of its digits is 1200, while the sum is 23.

The square root of 556142 is about 745.7492876296. The cubic root of 556142 is about 82.2359848996.

Adding to 556142 its reverse (241655), we get a palindrome (797797).

The spelling of 556142 in words is "five hundred fifty-six thousand, one hundred forty-two".