13189807 has 4 divisors (see below), whose sum is σ = 13965696. Its totient is φ = 12413920.

The previous prime is 13189801. The next prime is 13189829. The reversal of 13189807 is 70898131.

13189807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70898131 = 127 ⋅558253.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13189807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13189801) 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, 387919 + ... + 387952.

It is an arithmetic number, because the mean of its divisors is an integer number (3491424).

Almost surely, 2^13189807 is an apocalyptic number.

13189807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13189807 is a deficient number, since it is larger than the sum of its proper divisors (775889).

13189807 is an equidigital number, since it uses as much as digits as its factorization.

13189807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775888.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 13189807 is about 3631.7773885523. Note that the first 3 decimals coincide. The cubic root of 13189807 is about 236.2723025146.

The spelling of 13189807 in words is "thirteen million, one hundred eighty-nine thousand, eight hundred seven".