12614521 has 4 divisors (see below), whose sum is σ = 12955492. Its totient is φ = 12273552.

The previous prime is 12614519. The next prime is 12614533. The reversal of 12614521 is 12541621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11868025 + 746496 = 3445^2 + 864^2 .

It is a cyclic number.

It is not a de Polignac number, because 12614521 - 2¹ = 12614519 is a prime.

It is a super-2 number, since 2×12614521² = 318252280118882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12614492 and 12614501.

It is not an unprimeable number, because it can be changed into a prime (12614821) 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, 170430 + ... + 170503.

It is an arithmetic number, because the mean of its divisors is an integer number (3238873).

Almost surely, 2^12614521 is an apocalyptic number.

It is an amenable number.

12614521 is a deficient number, since it is larger than the sum of its proper divisors (340971).

12614521 is an equidigital number, since it uses as much as digits as its factorization.

12614521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340970.

The product of its digits is 480, while the sum is 22.

The square root of 12614521 is about 3551.6926950399. The cubic root of 12614521 is about 232.7860340559.

Subtracting from 12614521 its reverse (12541621), we obtain a square (72900 = 270²).

The spelling of 12614521 in words is "twelve million, six hundred fourteen thousand, five hundred twenty-one".