9001256 has 32 divisors (see below), whose sum is σ = 18532800. Its totient is φ = 4064640.

The previous prime is 9001243. The next prime is 9001259. The reversal of 9001256 is 6521009.

It is not an unprimeable number, because it can be changed into a prime (9001259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20285 + ... + 20723.

It is an arithmetic number, because the mean of its divisors is an integer number (579150).

Almost surely, 2^9001256 is an apocalyptic number.

It is an amenable number.

9001256 is an abundant number, since it is smaller than the sum of its proper divisors (9531544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9001256 is a wasteful number, since it uses less digits than its factorization.

9001256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 9001256 is about 3000.2093260304. The cubic root of 9001256 is about 208.0180580969.

The spelling of 9001256 in words is "nine million, one thousand, two hundred fifty-six".