34145 has 4 divisors (see below), whose sum is σ = 40980. Its totient is φ = 27312.

The previous prime is 34141. The next prime is 34147. The reversal of 34145 is 54143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54143 = 29 ⋅1867.

It can be written as a sum of positive squares in 2 ways, for example, as 15376 + 18769 = 124^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 34145 - 2² = 34141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (34141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3410 + ... + 3419.

It is an arithmetic number, because the mean of its divisors is an integer number (10245).

2³⁴¹⁴⁵ is an apocalyptic number.

It is an amenable number.

34145 is a deficient number, since it is larger than the sum of its proper divisors (6835).

34145 is an equidigital number, since it uses as much as digits as its factorization.

34145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834.

The product of its digits is 240, while the sum is 17.

The square root of 34145 is about 184.7836572860. The cubic root of 34145 is about 32.4421060045.

Adding to 34145 its reverse (54143), we get a palindrome (88288).

The spelling of 34145 in words is "thirty-four thousand, one hundred forty-five".