13026649 has 4 divisors (see below), whose sum is σ = 13078800. Its totient is φ = 12974500.

The previous prime is 13026617. The next prime is 13026659. The reversal of 13026649 is 94662031.

13026649 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 Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94662031 = 109 ⋅868459.

It is a cyclic number.

It is not a de Polignac number, because 13026649 - 2⁵ = 13026617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13026649.

It is not an unprimeable number, because it can be changed into a prime (13026659) 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, 25699 + ... + 26200.

It is an arithmetic number, because the mean of its divisors is an integer number (3269700).

Almost surely, 2^13026649 is an apocalyptic number.

It is an amenable number.

13026649 is a deficient number, since it is larger than the sum of its proper divisors (52151).

13026649 is an equidigital number, since it uses as much as digits as its factorization.

13026649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52150.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 13026649 is about 3609.2449348860. The cubic root of 13026649 is about 235.2940276188.

The spelling of 13026649 in words is "thirteen million, twenty-six thousand, six hundred forty-nine".