1256006 has 8 divisors (see below), whose sum is σ = 1890120. Its totient is φ = 625968.

The previous prime is 1255997. The next prime is 1256009. The reversal of 1256006 is 6006521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256009) 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, 71 + ... + 1586.

It is an arithmetic number, because the mean of its divisors is an integer number (236265).

2^1256006 is an apocalyptic number.

1256006 is a deficient number, since it is larger than the sum of its proper divisors (634114).

1256006 is a wasteful number, since it uses less digits than its factorization.

1256006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1256006 is about 1120.7167349513. The cubic root of 1256006 is about 107.8939860474.

The spelling of 1256006 in words is "one million, two hundred fifty-six thousand, six".