11841851 has 4 divisors (see below), whose sum is σ = 13533552. Its totient is φ = 10150152.

The previous prime is 11841847. The next prime is 11841853. The reversal of 11841851 is 15814811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15814811 = 17 ⋅930283.

It is a cyclic number.

It is not a de Polignac number, because 11841851 - 2² = 11841847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11841853) 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, 845840 + ... + 845853.

It is an arithmetic number, because the mean of its divisors is an integer number (3383388).

Almost surely, 2^11841851 is an apocalyptic number.

11841851 is a deficient number, since it is larger than the sum of its proper divisors (1691701).

11841851 is an equidigital number, since it uses as much as digits as its factorization.

11841851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691700.

The product of its digits is 1280, while the sum is 29.

The square root of 11841851 is about 3441.1990642798. The cubic root of 11841851 is about 227.9326452834.

The spelling of 11841851 in words is "eleven million, eight hundred forty-one thousand, eight hundred fifty-one".