13134021 has 4 divisors (see below), whose sum is σ = 17512032. Its totient is φ = 8756012.

The previous prime is 13134019. The next prime is 13134029. The reversal of 13134021 is 12043131.

13134021 is digitally balanced in base 3, 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 Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13134021 - 2¹ = 13134019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13134029) 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, 2189001 + ... + 2189006.

It is an arithmetic number, because the mean of its divisors is an integer number (4378008).

Almost surely, 2^13134021 is an apocalyptic number.

It is an amenable number.

13134021 is a deficient number, since it is larger than the sum of its proper divisors (4378011).

13134021 is an equidigital number, since it uses as much as digits as its factorization.

13134021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378010.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13134021 is about 3624.0889889736. The cubic root of 13134021 is about 235.9387289470.

Adding to 13134021 its reverse (12043131), we get a palindrome (25177152).

The spelling of 13134021 in words is "thirteen million, one hundred thirty-four thousand, twenty-one".