12581353 has 4 divisors (see below), whose sum is σ = 12588628. Its totient is φ = 12574080.

The previous prime is 12581341. The next prime is 12581357. The reversal of 12581353 is 35318521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4897369 + 7683984 = 2213^2 + 2772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12581353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12581357) 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, 613 + ... + 5053.

It is an arithmetic number, because the mean of its divisors is an integer number (3147157).

Almost surely, 2^12581353 is an apocalyptic number.

It is an amenable number.

12581353 is a deficient number, since it is larger than the sum of its proper divisors (7275).

12581353 is an equidigital number, since it uses as much as digits as its factorization.

12581353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7274.

The product of its digits is 3600, while the sum is 28.

The square root of 12581353 is about 3547.0202987860. The cubic root of 12581353 is about 232.5818295999.

Adding to 12581353 its reverse (35318521), we get a palindrome (47899874).

The spelling of 12581353 in words is "twelve million, five hundred eighty-one thousand, three hundred fifty-three".