9213081 has 24 divisors (see below), whose sum is σ = 13313664. Its totient is φ = 5663520.

The previous prime is 9213079. The next prime is 9213089. The reversal of 9213081 is 1803129.

It is not a de Polignac number, because 9213081 - 2¹ = 9213079 is a prime.

It is a super-2 number, since 2×9213081² = 169761723025122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9213089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50811 + ... + 50991.

It is an arithmetic number, because the mean of its divisors is an integer number (554736).

Almost surely, 2^9213081 is an apocalyptic number.

It is an amenable number.

9213081 is a deficient number, since it is larger than the sum of its proper divisors (4100583).

9213081 is a wasteful number, since it uses less digits than its factorization.

9213081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 9213081 is about 3035.3057506617. The cubic root of 9213081 is about 209.6371739443.

The spelling of 9213081 in words is "nine million, two hundred thirteen thousand, eighty-one".