13144825 has 24 divisors (see below), whose sum is σ = 17456472. Its totient is φ = 9784320.

The previous prime is 13144823. The next prime is 13144841. The reversal of 13144825 is 52844131.

13144825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 385641 + 12759184 = 621^2 + 3572^2 .

It is not a de Polignac number, because 13144825 - 2¹ = 13144823 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 13144793 and 13144802.

It is not an unprimeable number, because it can be changed into a prime (13144823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66627 + ... + 66823.

It is an arithmetic number, because the mean of its divisors is an integer number (727353).

Almost surely, 2^13144825 is an apocalyptic number.

It is an amenable number.

13144825 is a deficient number, since it is larger than the sum of its proper divisors (4311647).

13144825 is a wasteful number, since it uses less digits than its factorization.

13144825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 376 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 13144825 is about 3625.5792640625. The cubic root of 13144825 is about 236.0034053420.

Adding to 13144825 its reverse (52844131), we get a palindrome (65988956).

The spelling of 13144825 in words is "thirteen million, one hundred forty-four thousand, eight hundred twenty-five".