11885545 has 32 divisors (see below), whose sum is σ = 17498880. Its totient is φ = 7568640.

The previous prime is 11885543. The next prime is 11885551. The reversal of 11885545 is 54558811.

It is not a de Polignac number, because 11885545 - 2¹ = 11885543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11885543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40419 + ... + 40711.

It is an arithmetic number, because the mean of its divisors is an integer number (546840).

Almost surely, 2^11885545 is an apocalyptic number.

It is an amenable number.

11885545 is a deficient number, since it is larger than the sum of its proper divisors (5613335).

11885545 is a wasteful number, since it uses less digits than its factorization.

11885545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 32000, while the sum is 37.

The square root of 11885545 is about 3447.5418779182. The cubic root of 11885545 is about 228.2126427490.

The spelling of 11885545 in words is "eleven million, eight hundred eighty-five thousand, five hundred forty-five".