11864545 has 16 divisors (see below), whose sum is σ = 17751168. Its totient is φ = 7395840.

The previous prime is 11864543. The next prime is 11864549. The reversal of 11864545 is 54546811.

It is not a de Polignac number, because 11864545 - 2¹ = 11864543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11864545.

It is not an unprimeable number, because it can be changed into a prime (11864543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15024 + ... + 15793.

It is an arithmetic number, because the mean of its divisors is an integer number (1109448).

Almost surely, 2^11864545 is an apocalyptic number.

It is an amenable number.

11864545 is a deficient number, since it is larger than the sum of its proper divisors (5886623).

11864545 is a wasteful number, since it uses less digits than its factorization.

11864545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30840.

The product of its digits is 19200, while the sum is 34.

The square root of 11864545 is about 3444.4948831432. The cubic root of 11864545 is about 228.0781575180.

The spelling of 11864545 in words is "eleven million, eight hundred sixty-four thousand, five hundred forty-five".