13158243 has 24 divisors (see below), whose sum is σ = 21821696. Its totient is φ = 7484400.

The previous prime is 13158227. The next prime is 13158247. The reversal of 13158243 is 34285131.

It is a happy number.

13158243 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13158243 - 2⁴ = 13158227 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13158247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20538 + ... + 21168.

Almost surely, 2^13158243 is an apocalyptic number.

13158243 is a deficient number, since it is larger than the sum of its proper divisors (8663453).

13158243 is a wasteful number, since it uses less digits than its factorization.

13158243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 972 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13158243 is about 3627.4292549959. The cubic root of 13158243 is about 236.0836807052.

The spelling of 13158243 in words is "thirteen million, one hundred fifty-eight thousand, two hundred forty-three".