13145252 has 12 divisors (see below), whose sum is σ = 23034060. Its totient is φ = 6564096.

The previous prime is 13145243. The next prime is 13145257. The reversal of 13145252 is 25254131.

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 5271616 = 2806^2 + 2296^2 .

It is not an unprimeable number, because it can be changed into a prime (13145257) 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, 2408 + ... + 5664.

It is an arithmetic number, because the mean of its divisors is an integer number (1919505).

Almost surely, 2^13145252 is an apocalyptic number.

It is an amenable number.

13145252 is a deficient number, since it is larger than the sum of its proper divisors (9888808).

13145252 is a wasteful number, since it uses less digits than its factorization.

13145252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270 (or 4268 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 13145252 is about 3625.6381507260. The cubic root of 13145252 is about 236.0059607802.

Adding to 13145252 its reverse (25254131), we get a palindrome (38399383).

The spelling of 13145252 in words is "thirteen million, one hundred forty-five thousand, two hundred fifty-two".