13066187 has 4 divisors (see below), whose sum is σ = 13073616. Its totient is φ = 13058760.

The previous prime is 13066177. The next prime is 13066223. The reversal of 13066187 is 78166031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13066187 - 2¹⁶ = 13000651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13066147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578 + ... + 5144.

It is an arithmetic number, because the mean of its divisors is an integer number (3268404).

Almost surely, 2^13066187 is an apocalyptic number.

13066187 is a deficient number, since it is larger than the sum of its proper divisors (7429).

13066187 is an equidigital number, since it uses as much as digits as its factorization.

13066187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7428.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 13066187 is about 3614.7181079581. The cubic root of 13066187 is about 235.5318390725.

The spelling of 13066187 in words is "thirteen million, sixty-six thousand, one hundred eighty-seven".