9021081 has 16 divisors (see below), whose sum is σ = 12547904. Its totient is φ = 5759424.

The previous prime is 9021071. The next prime is 9021113. The reversal of 9021081 is 1801209.

It is not a de Polignac number, because 9021081 - 2¹⁰ = 9020057 is a prime.

It is a super-2 number, since 2×9021081² = 162759804817122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

9021081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9021071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6831 + ... + 8043.

It is an arithmetic number, because the mean of its divisors is an integer number (784244).

Almost surely, 2^9021081 is an apocalyptic number.

It is an amenable number.

9021081 is a deficient number, since it is larger than the sum of its proper divisors (3526823).

9021081 is a wasteful number, since it uses less digits than its factorization.

9021081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 9021081 is about 3003.5114449590. The cubic root of 9021081 is about 208.1706639876.

The spelling of 9021081 in words is "nine million, twenty-one thousand, eighty-one".