11854019 has 2 divisors, whose sum is σ = 11854020. Its totient is φ = 11854018.

The previous prime is 11854009. The next prime is 11854057. The reversal of 11854019 is 91045811.

It is a weak prime.

It is an emirp because it is prime and its reverse (91045811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11854019 - 2¹² = 11849923 is a prime.

It is a super-2 number, since 2×11854019² = 281035532904722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11853982 and 11854000.

It is not a weakly prime, because it can be changed into another prime (11854009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5927009 + 5927010.

It is an arithmetic number, because the mean of its divisors is an integer number (5927010).

Almost surely, 2^11854019 is an apocalyptic number.

11854019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11854019 is an equidigital number, since it uses as much as digits as its factorization.

11854019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 11854019 is about 3442.9665987343. The cubic root of 11854019 is about 228.0106886853.

The spelling of 11854019 in words is "eleven million, eight hundred fifty-four thousand, nineteen".