11856045 has 8 divisors (see below), whose sum is σ = 18969696. Its totient is φ = 6323216.

The previous prime is 11856023. The next prime is 11856049. The reversal of 11856045 is 54065811.

11856045 is digitally balanced in base 3, because in such base 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 11856045 - 2¹² = 11851949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11856049) 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 7 ways as a sum of consecutive naturals, for example, 395187 + ... + 395216.

It is an arithmetic number, because the mean of its divisors is an integer number (2371212).

Almost surely, 2^11856045 is an apocalyptic number.

11856045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11856045 is a deficient number, since it is larger than the sum of its proper divisors (7113651).

11856045 is an equidigital number, since it uses as much as digits as its factorization.

11856045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790411.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 11856045 is about 3443.2608091749. The cubic root of 11856045 is about 228.0236779041.

Subtracting from 11856045 its sum of digits (30), we obtain a triangular number (11856015 = T₄₈₆₉).

The spelling of 11856045 in words is "eleven million, eight hundred fifty-six thousand, forty-five".