12162481 has 2 divisors, whose sum is σ = 12162482. Its totient is φ = 12162480.

The previous prime is 12162407. The next prime is 12162487. The reversal of 12162481 is 18426121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6330256 + 5832225 = 2516^2 + 2415^2 .

It is a cyclic number.

It is not a de Polignac number, because 12162481 - 2²³ = 3773873 is a prime.

It is a super-2 number, since 2×12162481² = 295851888150722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12162487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6081240 + 6081241.

It is an arithmetic number, because the mean of its divisors is an integer number (6081241).

Almost surely, 2^12162481 is an apocalyptic number.

It is an amenable number.

12162481 is a deficient number, since it is larger than the sum of its proper divisors (1).

12162481 is an equidigital number, since it uses as much as digits as its factorization.

12162481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 25.

The square root of 12162481 is about 3487.4748744615. The cubic root of 12162481 is about 229.9715213636.

The spelling of 12162481 in words is "twelve million, one hundred sixty-two thousand, four hundred eighty-one".