147138281 has 12 divisors (see below), whose sum is σ = 157852032. Its totient is φ = 137110848.

The previous prime is 147138269. The next prime is 147138287. The reversal of 147138281 is 182831741.

It is not a de Polignac number, because 147138281 - 2¹⁰ = 147137257 is a prime.

It is a super-3 number, since 3×147138281³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (147138287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27296 + ... + 32238.

It is an arithmetic number, because the mean of its divisors is an integer number (13154336).

Almost surely, 2^147138281 is an apocalyptic number.

It is an amenable number.

147138281 is a deficient number, since it is larger than the sum of its proper divisors (10713751).

147138281 is a wasteful number, since it uses less digits than its factorization.

147138281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080 (or 5063 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 147138281 is about 12130.0569248458. The cubic root of 147138281 is about 527.9286436035.

The spelling of 147138281 in words is "one hundred forty-seven million, one hundred thirty-eight thousand, two hundred eighty-one".