13609541 has 4 divisors (see below), whose sum is σ = 14846784. Its totient is φ = 12372300.

The previous prime is 13609513. The next prime is 13609559. The reversal of 13609541 is 14590631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13609541 - 2¹⁴ = 13593157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13609501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618605 + ... + 618626.

It is an arithmetic number, because the mean of its divisors is an integer number (3711696).

Almost surely, 2^13609541 is an apocalyptic number.

13609541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13609541 is a deficient number, since it is larger than the sum of its proper divisors (1237243).

13609541 is a wasteful number, since it uses less digits than its factorization.

13609541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237242.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 13609541 is about 3689.1111395565. Note that the first 4 decimals coincide. The cubic root of 13609541 is about 238.7524440783.

It can be divided in two parts, 1360 and 9541, that added together give a palindrome (10901).

The spelling of 13609541 in words is "thirteen million, six hundred nine thousand, five hundred forty-one".