1257056 has 24 divisors (see below), whose sum is σ = 2500344. Its totient is φ = 622080.

The previous prime is 1257049. The next prime is 1257071. The reversal of 1257056 is 6507521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5096 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (104181).

2^1257056 is an apocalyptic number.

1257056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1257056 is a deficient number, since it is larger than the sum of its proper divisors (1243288).

1257056 is a wasteful number, since it uses less digits than its factorization.

1257056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1257056 is about 1121.1850873072. The cubic root of 1257056 is about 107.9240435287.

The spelling of 1257056 in words is "one million, two hundred fifty-seven thousand, fifty-six".