13146909 has 4 divisors (see below), whose sum is σ = 17529216. Its totient is φ = 8764604.

The previous prime is 13146893. The next prime is 13146923. The reversal of 13146909 is 90964131.

13146909 is digitally balanced in base 2 and base 4, because in such bases 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 13146909 - 2⁴ = 13146893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13146909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13146929) 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, 2191149 + ... + 2191154.

It is an arithmetic number, because the mean of its divisors is an integer number (4382304).

Almost surely, 2^13146909 is an apocalyptic number.

It is an amenable number.

13146909 is a deficient number, since it is larger than the sum of its proper divisors (4382307).

13146909 is an equidigital number, since it uses as much as digits as its factorization.

13146909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382306.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 13146909 is about 3625.8666550219. The cubic root of 13146909 is about 236.0158767926.

The spelling of 13146909 in words is "thirteen million, one hundred forty-six thousand, nine hundred nine".