13145187 has 8 divisors (see below), whose sum is σ = 19120320. Its totient is φ = 7966760.

The previous prime is 13145179. The next prime is 13145189. The reversal of 13145187 is 78154131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13145187 - 2³ = 13145179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13145189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199137 + ... + 199202.

It is an arithmetic number, because the mean of its divisors is an integer number (2390040).

Almost surely, 2^13145187 is an apocalyptic number.

13145187 is a deficient number, since it is larger than the sum of its proper divisors (5975133).

13145187 is a wasteful number, since it uses less digits than its factorization.

13145187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398353.

The product of its digits is 3360, while the sum is 30.

The square root of 13145187 is about 3625.6291867757. The cubic root of 13145187 is about 236.0055717827.

The spelling of 13145187 in words is "thirteen million, one hundred forty-five thousand, one hundred eighty-seven".