13500669 has 32 divisors (see below), whose sum is σ = 23466240. Its totient is φ = 6700032.

The previous prime is 13500661. The next prime is 13500679. The reversal of 13500669 is 96600531.

It is a happy number.

13500669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13500669 - 2³ = 13500661 is a prime.

It is a super-2 number, since 2×13500669² = 364536126895122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3187 + ... + 6095.

It is an arithmetic number, because the mean of its divisors is an integer number (733320).

Almost surely, 2^13500669 is an apocalyptic number.

It is an amenable number.

13500669 is a deficient number, since it is larger than the sum of its proper divisors (9965571).

13500669 is a wasteful number, since it uses less digits than its factorization.

13500669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 13500669 is about 3674.3256524157. The cubic root of 13500669 is about 238.1140909573.

The spelling of 13500669 in words is "thirteen million, five hundred thousand, six hundred sixty-nine".