12461553 has 24 divisors (see below), whose sum is σ = 19998240. Its totient is φ = 7665840.

The previous prime is 12461551. The next prime is 12461591. The reversal of 12461553 is 35516421.

It is not a de Polignac number, because 12461553 - 2¹ = 12461551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12461551) 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, 3198 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (833260).

Almost surely, 2^12461553 is an apocalyptic number.

12461553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12461553 is a deficient number, since it is larger than the sum of its proper divisors (7536687).

12461553 is a wasteful number, since it uses less digits than its factorization.

12461553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766 (or 2747 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 12461553 is about 3530.0924917061. The cubic root of 12461553 is about 231.8412570927.

Adding to 12461553 its reverse (35516421), we get a palindrome (47977974).

The spelling of 12461553 in words is "twelve million, four hundred sixty-one thousand, five hundred fifty-three".