13608069 has 4 divisors (see below), whose sum is σ = 18144096. Its totient is φ = 9072044.

The previous prime is 13608061. The next prime is 13608071. The reversal of 13608069 is 96080631.

13608069 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, and also an emirpimes, since its reverse is a distinct semiprime: 96080631 = 3 ⋅32026877.

It is a cyclic number.

It is not a de Polignac number, because 13608069 - 2³ = 13608061 is a prime.

It is a super-2 number, since 2×13608069² = 370359083817522, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13608061) 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, 2268009 + ... + 2268014.

It is an arithmetic number, because the mean of its divisors is an integer number (4536024).

Almost surely, 2^13608069 is an apocalyptic number.

It is an amenable number.

13608069 is a deficient number, since it is larger than the sum of its proper divisors (4536027).

13608069 is an equidigital number, since it uses as much as digits as its factorization.

13608069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536026.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 13608069 is about 3688.9116281093. The cubic root of 13608069 is about 238.7438359930.

The spelling of 13608069 in words is "thirteen million, six hundred eight thousand, sixty-nine".