147844 has 12 divisors (see below), whose sum is σ = 270144. Its totient is φ = 70664.

The previous prime is 147827. The next prime is 147853. The reversal of 147844 is 448741.

It is an Ulam number.

It is an unprimeable 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, 712 + ... + 895.

It is an arithmetic number, because the mean of its divisors is an integer number (22512).

2¹⁴⁷⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

147844 is a deficient number, since it is larger than the sum of its proper divisors (122300).

147844 is a wasteful number, since it uses less digits than its factorization.

147844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1632 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 147844 is about 384.5048764320. The cubic root of 147844 is about 52.8771332089.

The spelling of 147844 in words is "one hundred forty-seven thousand, eight hundred forty-four".