12481751 has 4 divisors (see below), whose sum is σ = 12510000. Its totient is φ = 12453504.

The previous prime is 12481673. The next prime is 12481771. The reversal of 12481751 is 15718421.

12481751 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12481751 - 2¹⁴ = 12465367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12481771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13451 + ... + 14348.

It is an arithmetic number, because the mean of its divisors is an integer number (3127500).

Almost surely, 2^12481751 is an apocalyptic number.

12481751 is a deficient number, since it is larger than the sum of its proper divisors (28249).

12481751 is an equidigital number, since it uses as much as digits as its factorization.

12481751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28248.

The product of its digits is 2240, while the sum is 29.

The square root of 12481751 is about 3532.9521649748. The cubic root of 12481751 is about 231.9664475358.

The spelling of 12481751 in words is "twelve million, four hundred eighty-one thousand, seven hundred fifty-one".