11785545 has 48 divisors (see below), whose sum is σ = 21790080. Its totient is φ = 5879808.

The previous prime is 11785531. The next prime is 11785559. The reversal of 11785545 is 54558711.

11785545 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11785531) and next prime (11785559).

It is not a de Polignac number, because 11785545 - 2¹⁴ = 11769161 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 60969 + ... + 61161.

It is an arithmetic number, because the mean of its divisors is an integer number (453960).

Almost surely, 2^11785545 is an apocalyptic number.

11785545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11785545 is a deficient number, since it is larger than the sum of its proper divisors (10004535).

11785545 is a wasteful number, since it uses less digits than its factorization.

11785545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 283 counting only the distinct ones).

The product of its digits is 28000, while the sum is 36.

The square root of 11785545 is about 3433.0081561220. The cubic root of 11785545 is about 227.5708107876.

The spelling of 11785545 in words is "eleven million, seven hundred eighty-five thousand, five hundred forty-five".