147556 has 12 divisors (see below), whose sum is σ = 265468. Its totient is φ = 71712.

The previous prime is 147551. The next prime is 147557. The reversal of 147556 is 655741.

It can be written as a sum of positive squares in 2 ways, for example, as 129600 + 17956 = 360^2 + 134^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147551) by changing a digit.

147556 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351 + ... + 646.

2¹⁴⁷⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

147556 is a deficient number, since it is larger than the sum of its proper divisors (117912).

147556 is a wasteful number, since it uses less digits than its factorization.

147556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1036 counting only the distinct ones).

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

The square root of 147556 is about 384.1301862650. The cubic root of 147556 is about 52.8427760182.

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

The spelling of 147556 in words is "one hundred forty-seven thousand, five hundred fifty-six".