9401281 has 4 divisors (see below), whose sum is σ = 9436500. Its totient is φ = 9366064.

The previous prime is 9401279. The next prime is 9401309. The reversal of 9401281 is 1821049.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1821049 = 199 ⋅9151.

It can be written as a sum of positive squares in 2 ways, for example, as 497025 + 8904256 = 705^2 + 2984^2 .

It is a cyclic number.

It is not a de Polignac number, because 9401281 - 2¹ = 9401279 is a prime.

It is a super-2 number, since 2×9401281² = 176768168881922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9401881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17206 + ... + 17743.

It is an arithmetic number, because the mean of its divisors is an integer number (2359125).

Almost surely, 2^9401281 is an apocalyptic number.

It is an amenable number.

9401281 is a deficient number, since it is larger than the sum of its proper divisors (35219).

9401281 is a wasteful number, since it uses less digits than its factorization.

9401281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35218.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 9401281 is about 3066.1508442997. The cubic root of 9401281 is about 211.0550158645.

The spelling of 9401281 in words is "nine million, four hundred one thousand, two hundred eighty-one".