9121256 has 8 divisors (see below), whose sum is σ = 17102370. Its totient is φ = 4560624.

The previous prime is 9121249. The next prime is 9121279. The reversal of 9121256 is 6521219.

9121256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6002500 + 3118756 = 2450^2 + 1766^2 .

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

It is a super-2 number, since 2×9121256² = 166394622035072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570071 + ... + 570086.

Almost surely, 2^9121256 is an apocalyptic number.

It is an amenable number.

9121256 is a deficient number, since it is larger than the sum of its proper divisors (7981114).

9121256 is a wasteful number, since it uses less digits than its factorization.

9121256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140163 (or 1140159 counting only the distinct ones).

The product of its digits is 1080, while the sum is 26.

The square root of 9121256 is about 3020.1417185291. The cubic root of 9121256 is about 208.9383760994.

The spelling of 9121256 in words is "nine million, one hundred twenty-one thousand, two hundred fifty-six".