14069521 has 4 divisors (see below), whose sum is σ = 14109732. Its totient is φ = 14029312.

The previous prime is 14069513. The next prime is 14069527. The reversal of 14069521 is 12596041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12596041 = 139 ⋅90619.

It can be written as a sum of positive squares in 2 ways, for example, as 10595025 + 3474496 = 3255^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 14069521 - 2³ = 14069513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14069521.

It is not an unprimeable number, because it can be changed into a prime (14069527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19576 + ... + 20281.

It is an arithmetic number, because the mean of its divisors is an integer number (3527433).

Almost surely, 2^14069521 is an apocalyptic number.

It is an amenable number.

14069521 is a deficient number, since it is larger than the sum of its proper divisors (40211).

14069521 is an equidigital number, since it uses as much as digits as its factorization.

14069521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40210.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 14069521 is about 3750.9360165164. The cubic root of 14069521 is about 241.4125095478.

The spelling of 14069521 in words is "fourteen million, sixty-nine thousand, five hundred twenty-one".