13824191 has 4 divisors (see below), whose sum is σ = 14551800. Its totient is φ = 13096584.

The previous prime is 13824169. The next prime is 13824211. The reversal of 13824191 is 19142831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19142831 = 23 ⋅832297.

It is a cyclic number.

It is not a de Polignac number, because 13824191 - 2¹⁸ = 13562047 is a prime.

It is a super-2 number, since 2×13824191² = 382216513608962, 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 (13824121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363776 + ... + 363813.

It is an arithmetic number, because the mean of its divisors is an integer number (3637950).

Almost surely, 2^13824191 is an apocalyptic number.

13824191 is a deficient number, since it is larger than the sum of its proper divisors (727609).

13824191 is an equidigital number, since it uses as much as digits as its factorization.

13824191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727608.

The product of its digits is 1728, while the sum is 29.

The square root of 13824191 is about 3718.0896976808. The cubic root of 13824191 is about 240.0011053190.

The spelling of 13824191 in words is "thirteen million, eight hundred twenty-four thousand, one hundred ninety-one".