1263256 has 8 divisors (see below), whose sum is σ = 2368620. Its totient is φ = 631624.

The previous prime is 1263247. The next prime is 1263259. The reversal of 1263256 is 6523621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a pancake number, because a pancake can be divided into 1263256 parts by 1589 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 1263256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78946 + ... + 78961.

2^1263256 is an apocalyptic number.

It is an amenable number.

1263256 is a deficient number, since it is larger than the sum of its proper divisors (1105364).

1263256 is a wasteful number, since it uses less digits than its factorization.

1263256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157913 (or 157909 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 1263256 is about 1123.9466179494. The cubic root of 1263256 is about 108.1011854621.

Adding to 1263256 its reverse (6523621), we get a palindrome (7786877).

The spelling of 1263256 in words is "one million, two hundred sixty-three thousand, two hundred fifty-six".