12521241 has 12 divisors (see below), whose sum is σ = 18670080. Its totient is φ = 8078040.

The previous prime is 12521239. The next prime is 12521291. The reversal of 12521241 is 14212521.

It is not a de Polignac number, because 12521241 - 2¹ = 12521239 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12521291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22161 + ... + 22718.

It is an arithmetic number, because the mean of its divisors is an integer number (1555840).

Almost surely, 2^12521241 is an apocalyptic number.

It is an amenable number.

12521241 is a deficient number, since it is larger than the sum of its proper divisors (6148839).

12521241 is a wasteful number, since it uses less digits than its factorization.

12521241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44916 (or 44913 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 12521241 is about 3538.5365619137. The cubic root of 12521241 is about 232.2108232752.

Adding to 12521241 its reverse (14212521), we get a palindrome (26733762).

The spelling of 12521241 in words is "twelve million, five hundred twenty-one thousand, two hundred forty-one".