13258387 has 4 divisors (see below), whose sum is σ = 13268416. Its totient is φ = 13248360.

The previous prime is 13258381. The next prime is 13258393. The reversal of 13258387 is 78385231.

13258387 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 a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (13258381) and next prime (13258393).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13258387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13258381) 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, 2664 + ... + 5797.

It is an arithmetic number, because the mean of its divisors is an integer number (3317104).

Almost surely, 2^13258387 is an apocalyptic number.

13258387 is a deficient number, since it is larger than the sum of its proper divisors (10029).

13258387 is an equidigital number, since it uses as much as digits as its factorization.

13258387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028.

The product of its digits is 40320, while the sum is 37.

The square root of 13258387 is about 3641.2068054424. The cubic root of 13258387 is about 236.6810917170.

The spelling of 13258387 in words is "thirteen million, two hundred fifty-eight thousand, three hundred eighty-seven".