9122081 has 4 divisors (see below), whose sum is σ = 9658692. Its totient is φ = 8585472.

The previous prime is 9122077. The next prime is 9122083. The reversal of 9122081 is 1802219.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7203856 + 1918225 = 2684^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 9122081 - 2² = 9122077 is a prime.

It is a super-2 number, since 2×9122081² = 166424723541122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9122083) 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, 268280 + ... + 268313.

It is an arithmetic number, because the mean of its divisors is an integer number (2414673).

Almost surely, 2^9122081 is an apocalyptic number.

It is an amenable number.

9122081 is a deficient number, since it is larger than the sum of its proper divisors (536611).

9122081 is a wasteful number, since it uses less digits than its factorization.

9122081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536610.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 9122081 is about 3020.2782984354. The cubic root of 9122081 is about 208.9446752671.

The spelling of 9122081 in words is "nine million, one hundred twenty-two thousand, eighty-one".