13350409 has 2 divisors, whose sum is σ = 13350410. Its totient is φ = 13350408.

The previous prime is 13350391. The next prime is 13350413. The reversal of 13350409 is 90405331.

13350409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8684809 + 4665600 = 2947^2 + 2160^2 .

It is a cyclic number.

It is not a de Polignac number, because 13350409 - 2¹⁷ = 13219337 is a prime.

It is not a weakly prime, because it can be changed into another prime (13350479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6675204 + 6675205.

It is an arithmetic number, because the mean of its divisors is an integer number (6675205).

Almost surely, 2^13350409 is an apocalyptic number.

It is an amenable number.

13350409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13350409 is an equidigital number, since it uses as much as digits as its factorization.

13350409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 13350409 is about 3653.8211505217. The cubic root of 13350409 is about 237.2274043244.

The spelling of 13350409 in words is "thirteen million, three hundred fifty thousand, four hundred nine".