13044919 has 4 divisors (see below), whose sum is σ = 13055320. Its totient is φ = 13034520.

The previous prime is 13044883. The next prime is 13044923. The reversal of 13044919 is 91944031.

13044919 = 1472² + 1473² + ... + 1477².

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 91944031 = 89 ⋅1033079.

It is a cyclic number.

It is not a de Polignac number, because 13044919 - 2⁷ = 13044791 is a prime.

It is a super-2 number, since 2×13044919² = 340339823433122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13044949) 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, 3012 + ... + 5929.

It is an arithmetic number, because the mean of its divisors is an integer number (3263830).

Almost surely, 2^13044919 is an apocalyptic number.

13044919 is a deficient number, since it is larger than the sum of its proper divisors (10401).

13044919 is an equidigital number, since it uses as much as digits as its factorization.

13044919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10400.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 13044919 is about 3611.7750483661. The cubic root of 13044919 is about 235.4039769424.

The spelling of 13044919 in words is "thirteen million, forty-four thousand, nine hundred nineteen".