147005 has 4 divisors (see below), whose sum is σ = 176412. Its totient is φ = 117600.

The previous prime is 146989. The next prime is 147011. The reversal of 147005 is 500741.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32761 + 114244 = 181^2 + 338^2 .

It is not a de Polignac number, because 147005 - 2⁴ = 146989 is a prime.

It is a super-2 number, since 2×147005² = 43220940050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147005.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14696 + ... + 14705.

It is an arithmetic number, because the mean of its divisors is an integer number (44103).

2¹⁴⁷⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

147005 is a deficient number, since it is larger than the sum of its proper divisors (29407).

147005 is an equidigital number, since it uses as much as digits as its factorization.

147005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29406.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 147005 is about 383.4123107048. The cubic root of 147005 is about 52.7769192432.

Adding to 147005 its reverse (500741), we get a palindrome (647746).

The spelling of 147005 in words is "one hundred forty-seven thousand, five".