13418919 has 8 divisors (see below), whose sum is σ = 19879920. Its totient is φ = 8945928.

The previous prime is 13418903. The next prime is 13418941. The reversal of 13418919 is 91981431.

13418919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13418919 - 2⁴ = 13418903 is a prime.

It is a super-2 number, since 2×13418919² = 360134774257122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13418989) 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, 248472 + ... + 248525.

It is an arithmetic number, because the mean of its divisors is an integer number (2484990).

Almost surely, 2^13418919 is an apocalyptic number.

13418919 is a deficient number, since it is larger than the sum of its proper divisors (6461001).

13418919 is an equidigital number, since it uses as much as digits as its factorization.

13418919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497006 (or 497000 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 13418919 is about 3663.1842705493. The cubic root of 13418919 is about 237.6325037157.

The spelling of 13418919 in words is "thirteen million, four hundred eighteen thousand, nine hundred nineteen".