147145 has 4 divisors (see below), whose sum is σ = 176580. Its totient is φ = 117712.

The previous prime is 147139. The next prime is 147151. The reversal of 147145 is 541741.

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

It is an interprime number because it is at equal distance from previous prime (147139) and next prime (147151).

It can be written as a sum of positive squares in 2 ways, for example, as 100489 + 46656 = 317^2 + 216^2 .

It is a cyclic number.

It is not a de Polignac number, because 147145 - 2³ = 147137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14710 + ... + 14719.

It is an arithmetic number, because the mean of its divisors is an integer number (44145).

2¹⁴⁷¹⁴⁵ is an apocalyptic number.

It is an amenable number.

147145 is a deficient number, since it is larger than the sum of its proper divisors (29435).

147145 is an equidigital number, since it uses as much as digits as its factorization.

147145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29434.

The product of its digits is 560, while the sum is 22.

The square root of 147145 is about 383.5948383386. The cubic root of 147145 is about 52.7936679352.

Adding to 147145 its reverse (541741), we get a palindrome (688886).

It can be divided in two parts, 147 and 145, that added together give a palindrome (292).

The spelling of 147145 in words is "one hundred forty-seven thousand, one hundred forty-five".