12512521 has 8 divisors (see below), whose sum is σ = 14321664. Its totient is φ = 10708800.

The previous prime is 12512519. The next prime is 12512531. The reversal of 12512521 is 12521521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12512521 - 2¹ = 12512519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12512501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7281 + ... + 8833.

It is an arithmetic number, because the mean of its divisors is an integer number (1790208).

Almost surely, 2^12512521 is an apocalyptic number.

It is an amenable number.

12512521 is a deficient number, since it is larger than the sum of its proper divisors (1809143).

12512521 is a wasteful number, since it uses less digits than its factorization.

12512521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711.

The product of its digits is 200, while the sum is 19.

The square root of 12512521 is about 3537.3041995282. The cubic root of 12512521 is about 232.1569056001.

The spelling of 12512521 in words is "twelve million, five hundred twelve thousand, five hundred twenty-one".