11851851 has 8 divisors (see below), whose sum is σ = 17239104. Its totient is φ = 7182920.

The previous prime is 11851841. The next prime is 11851859. The reversal of 11851851 is 15815811.

11851851 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11851851 - 2⁶ = 11851787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11851859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179541 + ... + 179606.

It is an arithmetic number, because the mean of its divisors is an integer number (2154888).

Almost surely, 2^11851851 is an apocalyptic number.

11851851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11851851 is a deficient number, since it is larger than the sum of its proper divisors (5387253).

11851851 is a wasteful number, since it uses less digits than its factorization.

11851851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359161.

The product of its digits is 1600, while the sum is 30.

The square root of 11851851 is about 3442.6517395752. The cubic root of 11851851 is about 227.9967874278.

The spelling of 11851851 in words is "eleven million, eight hundred fifty-one thousand, eight hundred fifty-one".