12457057 has 8 divisors (see below), whose sum is σ = 12805760. Its totient is φ = 12111120.

The previous prime is 12457051. The next prime is 12457061. The reversal of 12457057 is 75075421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12457057 - 2⁷ = 12456929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12457051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11119 + ... + 12187.

It is an arithmetic number, because the mean of its divisors is an integer number (1600720).

Almost surely, 2^12457057 is an apocalyptic number.

It is an amenable number.

12457057 is a deficient number, since it is larger than the sum of its proper divisors (348703).

12457057 is a wasteful number, since it uses less digits than its factorization.

12457057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 12457057 is about 3529.4556237471. The cubic root of 12457057 is about 231.8133717595.

The spelling of 12457057 in words is "twelve million, four hundred fifty-seven thousand, fifty-seven".