12508481 has 8 divisors (see below), whose sum is σ = 13820544. Its totient is φ = 11260480.

The previous prime is 12508453. The next prime is 12508487. The reversal of 12508481 is 18480521.

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 12508481 - 2⁶ = 12508417 is a prime.

It is a super-2 number, since 2×12508481² = 312924193854722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12508487) 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, 15605 + ... + 16386.

It is an arithmetic number, because the mean of its divisors is an integer number (1727568).

Almost surely, 2^12508481 is an apocalyptic number.

It is an amenable number.

12508481 is a deficient number, since it is larger than the sum of its proper divisors (1312063).

12508481 is a wasteful number, since it uses less digits than its factorization.

12508481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32031.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 12508481 is about 3536.7330970827. The cubic root of 12508481 is about 232.1319169012.

The spelling of 12508481 in words is "twelve million, five hundred eight thousand, four hundred eighty-one".