12653541 has 12 divisors (see below), whose sum is σ = 18907980. Its totient is φ = 8144640.

The previous prime is 12653539. The next prime is 12653551. The reversal of 12653541 is 14535621.

12653541 is a `hidden beast` number, since 1 + 2 + 653 + 5 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10536516 + 2117025 = 3246^2 + 1455^2 .

It is not a de Polignac number, because 12653541 - 2¹ = 12653539 is a prime.

It is a super-2 number, since 2×12653541² = 320224199677362, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12653551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23980 + ... + 24501.

It is an arithmetic number, because the mean of its divisors is an integer number (1575665).

Almost surely, 2^12653541 is an apocalyptic number.

It is an amenable number.

12653541 is a deficient number, since it is larger than the sum of its proper divisors (6254439).

12653541 is a wasteful number, since it uses less digits than its factorization.

12653541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48516 (or 48513 counting only the distinct ones).

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

The square root of 12653541 is about 3557.1816090832. The cubic root of 12653541 is about 233.0258096137.

The spelling of 12653541 in words is "twelve million, six hundred fifty-three thousand, five hundred forty-one".