12553138 has 16 divisors (see below), whose sum is σ = 20827800. Its totient is φ = 5636736.

The previous prime is 12553127. The next prime is 12553141. The reversal of 12553138 is 83135521.

It can be written as a sum of positive squares in 4 ways, for example, as 11269449 + 1283689 = 3357^2 + 1133^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5563 + ... + 7486.

Almost surely, 2^12553138 is an apocalyptic number.

12553138 is a deficient number, since it is larger than the sum of its proper divisors (8274662).

12553138 is a wasteful number, since it uses less digits than its factorization.

12553138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13101.

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

The square root of 12553138 is about 3543.0407844110. The cubic root of 12553138 is about 232.4078364428.

Adding to 12553138 its reverse (83135521), we get a palindrome (95688659).

The spelling of 12553138 in words is "twelve million, five hundred fifty-three thousand, one hundred thirty-eight".