1256168 has 16 divisors (see below), whose sum is σ = 2458080. Its totient is φ = 600688.

The previous prime is 1256161. The next prime is 1256197. The reversal of 1256168 is 8616521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1256168.

It is not an unprimeable number, because it can be changed into a prime (1256161) 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, 3230 + ... + 3597.

It is an arithmetic number, because the mean of its divisors is an integer number (153630).

2^1256168 is an apocalyptic number.

It is an amenable number.

1256168 is a deficient number, since it is larger than the sum of its proper divisors (1201912).

1256168 is a wasteful number, since it uses less digits than its factorization.

1256168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6856 (or 6852 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 1256168 is about 1120.7890077976. The cubic root of 1256168 is about 107.8986245800.

The spelling of 1256168 in words is "one million, two hundred fifty-six thousand, one hundred sixty-eight".