13145 has 8 divisors (see below), whose sum is σ = 17280. Its totient is φ = 9520.

The previous prime is 13127. The next prime is 13147. The reversal of 13145 is 54131.

13145 = T₇₀ + T₇₁ + ... + T₇₄.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13145 - 2⁸ = 12889 is a prime.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (13147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65 + ... + 174.

It is an arithmetic number, because the mean of its divisors is an integer number (2160).

2¹³¹⁴⁵ is an apocalyptic number.

It is an amenable number.

13145 is a deficient number, since it is larger than the sum of its proper divisors (4135).

13145 is a wasteful number, since it uses less digits than its factorization.

13145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255.

The product of its digits is 60, while the sum is 14.

The square root of 13145 is about 114.6516463031. The cubic root of 13145 is about 23.6004452659.

Subtracting from 13145 its sum of digits (14), we obtain a palindrome (13131).

Adding to 13145 its reverse (54131), we get a palindrome (67276).

The spelling of 13145 in words is "thirteen thousand, one hundred forty-five".