14521521 has 16 divisors (see below), whose sum is σ = 22193024. Its totient is φ = 8273664.

The previous prime is 14521511. The next prime is 14521601. The reversal of 14521521 is 12512541.

It is not a de Polignac number, because 14521521 - 2⁷ = 14521393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (14521511) 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 15 ways as a sum of consecutive naturals, for example, 8295 + ... + 9891.

It is an arithmetic number, because the mean of its divisors is an integer number (1387064).

Almost surely, 2^14521521 is an apocalyptic number.

It is an amenable number.

14521521 is a deficient number, since it is larger than the sum of its proper divisors (7671503).

14521521 is a wasteful number, since it uses less digits than its factorization.

14521521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040.

The product of its digits is 400, while the sum is 21.

The square root of 14521521 is about 3810.7113509160. The cubic root of 14521521 is about 243.9705296755.

The spelling of 14521521 in words is "fourteen million, five hundred twenty-one thousand, five hundred twenty-one".