9094028981 has 2 divisors, whose sum is σ = 9094028982. Its totient is φ = 9094028980.

The previous prime is 9094028971. The next prime is 9094028987. The reversal of 9094028981 is 1898204909.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7287353956 + 1806675025 = 85366^2 + 42505^2 .

It is a cyclic number.

It is not a de Polignac number, because 9094028981 - 2⁶ = 9094028917 is a prime.

It is a super-2 number, since 2×9094028981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9094028987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4547014490 + 4547014491.

It is an arithmetic number, because the mean of its divisors is an integer number (4547014491).

Almost surely, 2^9094028981 is an apocalyptic number.

It is an amenable number.

9094028981 is a deficient number, since it is larger than the sum of its proper divisors (1).

9094028981 is an equidigital number, since it uses as much as digits as its factorization.

9094028981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 9094028981 is about 95362.6183627526. The cubic root of 9094028981 is about 2087.3027468295.

The spelling of 9094028981 in words is "nine billion, ninety-four million, twenty-eight thousand, nine hundred eighty-one".