13513861 has 8 divisors (see below), whose sum is σ = 14770944. Its totient is φ = 12308160.

The previous prime is 13513859. The next prime is 13513873. The reversal of 13513861 is 16831531.

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 13513861 - 2¹ = 13513859 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 (13513561) 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 7 ways as a sum of consecutive naturals, for example, 12295 + ... + 13348.

It is an arithmetic number, because the mean of its divisors is an integer number (1846368).

Almost surely, 2^13513861 is an apocalyptic number.

It is an amenable number.

13513861 is a deficient number, since it is larger than the sum of its proper divisors (1257083).

13513861 is a wasteful number, since it uses less digits than its factorization.

13513861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25691.

The product of its digits is 2160, while the sum is 28.

The square root of 13513861 is about 3676.1203734372. The cubic root of 13513861 is about 238.1916223872.

The spelling of 13513861 in words is "thirteen million, five hundred thirteen thousand, eight hundred sixty-one".