13543461 has 12 divisors (see below), whose sum is σ = 19932588. Its totient is φ = 8858304.

The previous prime is 13543451. The next prime is 13543499. The reversal of 13543461 is 16434531.

It can be written as a sum of positive squares in 2 ways, for example, as 11902500 + 1640961 = 3450^2 + 1281^2 .

It is not a de Polignac number, because 13543461 - 2¹⁰ = 13542437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13543451) 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, 13720 + ... + 14673.

It is an arithmetic number, because the mean of its divisors is an integer number (1661049).

Almost surely, 2^13543461 is an apocalyptic number.

It is an amenable number.

13543461 is a deficient number, since it is larger than the sum of its proper divisors (6389127).

13543461 is a wasteful number, since it uses less digits than its factorization.

13543461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28452 (or 28449 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 13543461 is about 3680.1441547852. The cubic root of 13543461 is about 238.3654027407.

Adding to 13543461 its reverse (16434531), we get a palindrome (29977992).

The spelling of 13543461 in words is "thirteen million, five hundred forty-three thousand, four hundred sixty-one".