13124561 has 8 divisors (see below), whose sum is σ = 14008320. Its totient is φ = 12253248.

The previous prime is 13124543. The next prime is 13124593. The reversal of 13124561 is 16542131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13124561 - 2¹⁴ = 13108177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13124521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881 + ... + 5198.

It is an arithmetic number, because the mean of its divisors is an integer number (1751040).

Almost surely, 2^13124561 is an apocalyptic number.

It is an amenable number.

13124561 is a deficient number, since it is larger than the sum of its proper divisors (883759).

13124561 is a wasteful number, since it uses less digits than its factorization.

13124561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6223.

The product of its digits is 720, while the sum is 23.

The square root of 13124561 is about 3622.7835982846. The cubic root of 13124561 is about 235.8820690593.

Adding to 13124561 its reverse (16542131), we get a palindrome (29666692).

The spelling of 13124561 in words is "thirteen million, one hundred twenty-four thousand, five hundred sixty-one".