13127553 has 24 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 8179584.

The previous prime is 13127507. The next prime is 13127557. The reversal of 13127553 is 35572131.

It is not a de Polignac number, because 13127553 - 2¹⁶ = 13062017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13127557) 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, 36388 + ... + 36746.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^13127553 is an apocalyptic number.

It is an amenable number.

13127553 is a deficient number, since it is larger than the sum of its proper divisors (7090047).

13127553 is a wasteful number, since it uses less digits than its factorization.

13127553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 618 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 13127553 is about 3623.1965168895. The cubic root of 13127553 is about 235.8999923389.

Adding to 13127553 its reverse (35572131), we get a palindrome (48699684).

It can be divided in two parts, 131275 and 53, that added together give a triangular number (131328 = T₅₁₂).

The spelling of 13127553 in words is "thirteen million, one hundred twenty-seven thousand, five hundred fifty-three".