13059021 has 4 divisors (see below), whose sum is σ = 17412032. Its totient is φ = 8706012.

The previous prime is 13059017. The next prime is 13059047. The reversal of 13059021 is 12095031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13059021 - 2² = 13059017 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 (13051021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176501 + ... + 2176506.

It is an arithmetic number, because the mean of its divisors is an integer number (4353008).

Almost surely, 2^13059021 is an apocalyptic number.

It is an amenable number.

13059021 is a deficient number, since it is larger than the sum of its proper divisors (4353011).

13059021 is an equidigital number, since it uses as much as digits as its factorization.

13059021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353010.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 13059021 is about 3613.7267467256. The cubic root of 13059021 is about 235.4887729557.

The spelling of 13059021 in words is "thirteen million, fifty-nine thousand, twenty-one".