13148209 has 16 divisors (see below), whose sum is σ = 14500800. Its totient is φ = 11876544.

The previous prime is 13148189. The next prime is 13148221. The reversal of 13148209 is 90284131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13148209 - 2¹⁹ = 12623921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13148269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41319 + ... + 41635.

It is an arithmetic number, because the mean of its divisors is an integer number (906300).

Almost surely, 2^13148209 is an apocalyptic number.

13148209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13148209 is a deficient number, since it is larger than the sum of its proper divisors (1352591).

13148209 is a wasteful number, since it uses less digits than its factorization.

13148209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 13148209 is about 3626.0459180766. The cubic root of 13148209 is about 236.0236558208.

The spelling of 13148209 in words is "thirteen million, one hundred forty-eight thousand, two hundred nine".