12480457 has 4 divisors (see below), whose sum is σ = 13615056. Its totient is φ = 11345860.

The previous prime is 12480437. The next prime is 12480463. The reversal of 12480457 is 75408421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12480457 - 2¹¹ = 12478409 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12480437) 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, 567283 + ... + 567304.

It is an arithmetic number, because the mean of its divisors is an integer number (3403764).

Almost surely, 2^12480457 is an apocalyptic number.

It is an amenable number.

12480457 is a deficient number, since it is larger than the sum of its proper divisors (1134599).

12480457 is a wasteful number, since it uses less digits than its factorization.

12480457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134598.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 12480457 is about 3532.7690272646. The cubic root of 12480457 is about 231.9584311671.

Adding to 12480457 its reverse (75408421), we get a palindrome (87888878).

The spelling of 12480457 in words is "twelve million, four hundred eighty thousand, four hundred fifty-seven".