1256049 has 12 divisors (see below), whose sum is σ = 1842256. Its totient is φ = 824472.

The previous prime is 1256041. The next prime is 1256063. The reversal of 1256049 is 9406521.

It is not a de Polignac number, because 1256049 - 2³ = 1256041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1256041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439 + ... + 1644.

2^1256049 is an apocalyptic number.

It is an amenable number.

1256049 is a deficient number, since it is larger than the sum of its proper divisors (586207).

1256049 is a wasteful number, since it uses less digits than its factorization.

1256049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1256049 is about 1120.7359189390. The cubic root of 1256049 is about 107.8952173017.

The spelling of 1256049 in words is "one million, two hundred fifty-six thousand, forty-nine".