9085281 has 4 divisors (see below), whose sum is σ = 12113712. Its totient is φ = 6056852.

The previous prime is 9085277. The next prime is 9085283. The reversal of 9085281 is 1825809.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9085281 - 2² = 9085277 is a prime.

It is a super-3 number, since 3×9085281³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

9085281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9085283) 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, 1514211 + ... + 1514216.

It is an arithmetic number, because the mean of its divisors is an integer number (3028428).

Almost surely, 2^9085281 is an apocalyptic number.

It is an amenable number.

9085281 is a deficient number, since it is larger than the sum of its proper divisors (3028431).

9085281 is a wasteful number, since it uses less digits than its factorization.

9085281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028430.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 9085281 is about 3014.1799879901. The cubic root of 9085281 is about 208.6633240025.

The spelling of 9085281 in words is "nine million, eighty-five thousand, two hundred eighty-one".