12041819 has 4 divisors (see below), whose sum is σ = 12063480. Its totient is φ = 12020160.

The previous prime is 12041807. The next prime is 12041851. The reversal of 12041819 is 91814021.

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

It is a cyclic number.

It is not a de Polignac number, because 12041819 - 2⁴ = 12041803 is a prime.

It is a super-2 number, since 2×12041819² = 290010809657522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9974 + ... + 11115.

It is an arithmetic number, because the mean of its divisors is an integer number (3015870).

Almost surely, 2^12041819 is an apocalyptic number.

12041819 is a deficient number, since it is larger than the sum of its proper divisors (21661).

12041819 is an equidigital number, since it uses as much as digits as its factorization.

12041819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21660.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 12041819 is about 3470.1324182227. The cubic root of 12041819 is about 229.2084890870.

The spelling of 12041819 in words is "twelve million, forty-one thousand, eight hundred nineteen".