147285 has 16 divisors (see below), whose sum is σ = 262080. Its totient is φ = 78480.

The previous prime is 147283. The next prime is 147289. The reversal of 147285 is 582741.

It is not a de Polignac number, because 147285 - 2¹ = 147283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147283) 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 15 ways as a sum of consecutive naturals, for example, 411 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (16380).

2¹⁴⁷²⁸⁵ is an apocalyptic number.

147285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

147285 is a deficient number, since it is larger than the sum of its proper divisors (114795).

147285 is a wasteful number, since it uses less digits than its factorization.

147285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105 (or 1099 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 147285 is about 383.7772791607. Note that the first 3 decimals coincide. The cubic root of 147285 is about 52.8104060069.

The spelling of 147285 in words is "one hundred forty-seven thousand, two hundred eighty-five".