11945187 has 12 divisors (see below), whose sum is σ = 17849520. Its totient is φ = 7688688.

The previous prime is 11945179. The next prime is 11945221. The reversal of 11945187 is 78154911.

11945187 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 not a de Polignac number, because 11945187 - 2³ = 11945179 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11945107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22623 + ... + 23144.

It is an arithmetic number, because the mean of its divisors is an integer number (1487460).

Almost surely, 2^11945187 is an apocalyptic number.

11945187 is a deficient number, since it is larger than the sum of its proper divisors (5904333).

11945187 is a wasteful number, since it uses less digits than its factorization.

11945187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45802 (or 45799 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 11945187 is about 3456.1809848444. The cubic root of 11945187 is about 228.5937318452.

The spelling of 11945187 in words is "eleven million, nine hundred forty-five thousand, one hundred eighty-seven".