13158028 has 24 divisors (see below), whose sum is σ = 24992352. Its totient is φ = 6025344.

The previous prime is 13158023. The next prime is 13158029. The reversal of 13158028 is 82085131.

It is a junction number, because it is equal to n+sod(n) for n = 13157987 and 13158005.

It is not an unprimeable number, because it can be changed into a prime (13158023) 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, 6201 + ... + 8047.

It is an arithmetic number, because the mean of its divisors is an integer number (1041348).

Almost surely, 2^13158028 is an apocalyptic number.

It is an amenable number.

13158028 is a deficient number, since it is larger than the sum of its proper divisors (11834324).

13158028 is a wasteful number, since it uses less digits than its factorization.

13158028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 13158028 is about 3627.3996195622. The cubic root of 13158028 is about 236.0823948631.

The spelling of 13158028 in words is "thirteen million, one hundred fifty-eight thousand, twenty-eight".