14143145 has 4 divisors (see below), whose sum is σ = 16971780. Its totient is φ = 11314512.

The previous prime is 14143141. The next prime is 14143147. The reversal of 14143145 is 54134141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54134141 = 2609 ⋅20749.

It can be written as a sum of positive squares in 2 ways, for example, as 3463321 + 10679824 = 1861^2 + 3268^2 .

It is a cyclic number.

It is not a de Polignac number, because 14143145 - 2² = 14143141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14143145.

It is not an unprimeable number, because it can be changed into a prime (14143141) 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, 1414310 + ... + 1414319.

It is an arithmetic number, because the mean of its divisors is an integer number (4242945).

Almost surely, 2^14143145 is an apocalyptic number.

It is an amenable number.

14143145 is a deficient number, since it is larger than the sum of its proper divisors (2828635).

14143145 is an equidigital number, since it uses as much as digits as its factorization.

14143145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828634.

The product of its digits is 960, while the sum is 23.

The square root of 14143145 is about 3760.7372947336. The cubic root of 14143145 is about 241.8328707391.

Adding to 14143145 its reverse (54134141), we get a palindrome (68277286).

The spelling of 14143145 in words is "fourteen million, one hundred forty-three thousand, one hundred forty-five".