13145441 has 4 divisors (see below), whose sum is σ = 13162500. Its totient is φ = 13128384.

The previous prime is 13145417. The next prime is 13145449. The reversal of 13145441 is 14454131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14454131 = 17 ⋅850243.

It can be written as a sum of positive squares in 2 ways, for example, as 9891025 + 3254416 = 3145^2 + 1804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13145441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13145449) 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, 7316 + ... + 8933.

It is an arithmetic number, because the mean of its divisors is an integer number (3290625).

Almost surely, 2^13145441 is an apocalyptic number.

It is an amenable number.

13145441 is a deficient number, since it is larger than the sum of its proper divisors (17059).

13145441 is an equidigital number, since it uses as much as digits as its factorization.

13145441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17058.

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

The square root of 13145441 is about 3625.6642150094. The cubic root of 13145441 is about 236.0070918581.

Adding to 13145441 its reverse (14454131), we get a palindrome (27599572).

The spelling of 13145441 in words is "thirteen million, one hundred forty-five thousand, four hundred forty-one".