13144895 has 4 divisors (see below), whose sum is σ = 15773880. Its totient is φ = 10515912.

The previous prime is 13144877. The next prime is 13144897. The reversal of 13144895 is 59844131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59844131 = 17 ⋅3520243.

It is a cyclic number.

It is not a de Polignac number, because 13144895 - 2⁸ = 13144639 is a prime.

It is a super-2 number, since 2×13144895² = 345576529122050, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1314485 + ... + 1314494.

It is an arithmetic number, because the mean of its divisors is an integer number (3943470).

Almost surely, 2^13144895 is an apocalyptic number.

13144895 is a deficient number, since it is larger than the sum of its proper divisors (2628985).

13144895 is an equidigital number, since it uses as much as digits as its factorization.

13144895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628984.

The product of its digits is 17280, while the sum is 35.

The square root of 13144895 is about 3625.5889176794. The cubic root of 13144895 is about 236.0038242701.

The spelling of 13144895 in words is "thirteen million, one hundred forty-four thousand, eight hundred ninety-five".