12457441 has 4 divisors (see below), whose sum is σ = 12580884. Its totient is φ = 12334000.

The previous prime is 12457429. The next prime is 12457451. The reversal of 12457441 is 14475421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12047841 + 409600 = 3471^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 12457441 - 2⁵ = 12457409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12457411) 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 in 3 ways as a sum of consecutive naturals, for example, 61570 + ... + 61771.

It is an arithmetic number, because the mean of its divisors is an integer number (3145221).

Almost surely, 2^12457441 is an apocalyptic number.

It is an amenable number.

12457441 is a deficient number, since it is larger than the sum of its proper divisors (123443).

12457441 is a wasteful number, since it uses less digits than its factorization.

12457441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123442.

The product of its digits is 4480, while the sum is 28.

The square root of 12457441 is about 3529.5100226519. The cubic root of 12457441 is about 231.8157536870.

The spelling of 12457441 in words is "twelve million, four hundred fifty-seven thousand, four hundred forty-one".