12254521 has 2 divisors, whose sum is σ = 12254522. Its totient is φ = 12254520.

The previous prime is 12254509. The next prime is 12254537. The reversal of 12254521 is 12545221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7502121 + 4752400 = 2739^2 + 2180^2 .

It is a cyclic number.

It is not a de Polignac number, because 12254521 - 2¹³ = 12246329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12254492 and 12254501.

It is not a weakly prime, because it can be changed into another prime (12254591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6127260 + 6127261.

It is an arithmetic number, because the mean of its divisors is an integer number (6127261).

Almost surely, 2^12254521 is an apocalyptic number.

It is an amenable number.

12254521 is a deficient number, since it is larger than the sum of its proper divisors (1).

12254521 is an equidigital number, since it uses as much as digits as its factorization.

12254521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 800, while the sum is 22.

The square root of 12254521 is about 3500.6457975636. The cubic root of 12254521 is about 230.5501700026.

Adding to 12254521 its reverse (12545221), we get a palindrome (24799742).

It can be divided in two parts, 1 and 2254521, that added together give a palindrome (2254522).

The spelling of 12254521 in words is "twelve million, two hundred fifty-four thousand, five hundred twenty-one".