556147 has 4 divisors (see below), whose sum is σ = 571216. Its totient is φ = 541080.

The previous prime is 556123. The next prime is 556159. The reversal of 556147 is 741655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741655 = 5 ⋅148331.

It is a cyclic number.

It is not a de Polignac number, because 556147 - 2¹⁹ = 31859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556177) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 7479 + ... + 7552.

It is an arithmetic number, because the mean of its divisors is an integer number (142804).

2⁵⁵⁶¹⁴⁷ is an apocalyptic number.

556147 is a deficient number, since it is larger than the sum of its proper divisors (15069).

556147 is a wasteful number, since it uses less digits than its factorization.

556147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15068.

The product of its digits is 4200, while the sum is 28.

The square root of 556147 is about 745.7526399551. The cubic root of 556147 is about 82.2362313467.

It can be divided in two parts, 556 and 147, that added together give a triangular number (703 = T₃₇).

The spelling of 556147 in words is "five hundred fifty-six thousand, one hundred forty-seven".