13040187 has 4 divisors (see below), whose sum is σ = 17386920. Its totient is φ = 8693456.

The previous prime is 13040179. The next prime is 13040189. The reversal of 13040187 is 78104031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13040187 - 2³ = 13040179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13040189) 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, 2173362 + ... + 2173367.

It is an arithmetic number, because the mean of its divisors is an integer number (4346730).

Almost surely, 2^13040187 is an apocalyptic number.

13040187 is a deficient number, since it is larger than the sum of its proper divisors (4346733).

13040187 is an equidigital number, since it uses as much as digits as its factorization.

13040187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346732.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 13040187 is about 3611.1199093910. The cubic root of 13040187 is about 235.3755095026.

The spelling of 13040187 in words is "thirteen million, forty thousand, one hundred eighty-seven".