13461818 has 4 divisors (see below), whose sum is σ = 20192730. Its totient is φ = 6730908.

The previous prime is 13461809. The next prime is 13461863. The reversal of 13461818 is 81816431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10582009 + 2879809 = 3253^2 + 1697^2 .

13461818 is a modest number, since divided by 1818 gives 1346 as remainder.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3365453 + ... + 3365456.

Almost surely, 2^13461818 is an apocalyptic number.

13461818 is a deficient number, since it is larger than the sum of its proper divisors (6730912).

13461818 is an equidigital number, since it uses as much as digits as its factorization.

13461818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6730911.

The product of its digits is 4608, while the sum is 32.

The square root of 13461818 is about 3669.0350229999. The cubic root of 13461818 is about 237.8854638024.

The spelling of 13461818 in words is "thirteen million, four hundred sixty-one thousand, eight hundred eighteen".