147944 has 8 divisors (see below), whose sum is σ = 277410. Its totient is φ = 73968.

The previous prime is 147937. The next prime is 147949. The reversal of 147944 is 449741.

It can be written as a sum of positive squares in only one way, i.e., 131044 + 16900 = 362^2 + 130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (147949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9239 + ... + 9254.

2¹⁴⁷⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

147944 is a deficient number, since it is larger than the sum of its proper divisors (129466).

147944 is a wasteful number, since it uses less digits than its factorization.

147944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18499 (or 18495 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 147944 is about 384.6348918130. The cubic root of 147944 is about 52.8890523525.

The spelling of 147944 in words is "one hundred forty-seven thousand, nine hundred forty-four".