12351481 has 2 divisors, whose sum is σ = 12351482. Its totient is φ = 12351480.

The previous prime is 12351467. The next prime is 12351497. The reversal of 12351481 is 18415321.

12351481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 241081 = 3480^2 + 491^2 .

It is a cyclic number.

It is not a de Polignac number, because 12351481 - 2¹¹ = 12349433 is a prime.

It is a super-2 number, since 2×12351481² = 305118165786722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12351431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6175740 + 6175741.

It is an arithmetic number, because the mean of its divisors is an integer number (6175741).

Almost surely, 2^12351481 is an apocalyptic number.

It is an amenable number.

12351481 is a deficient number, since it is larger than the sum of its proper divisors (1).

12351481 is an equidigital number, since it uses as much as digits as its factorization.

12351481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 25.

The square root of 12351481 is about 3514.4673849675. The cubic root of 12351481 is about 231.1566249752.

The spelling of 12351481 in words is "twelve million, three hundred fifty-one thousand, four hundred eighty-one".