9124981 has 2 divisors, whose sum is σ = 9124982. Its totient is φ = 9124980.

The previous prime is 9124967. The next prime is 9124993. The reversal of 9124981 is 1894219.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7612081 + 1512900 = 2759^2 + 1230^2 .

It is a cyclic number.

It is not a de Polignac number, because 9124981 - 2¹¹ = 9122933 is a prime.

It is a super-2 number, since 2×9124981² = 166530556500722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9124081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4562490 + 4562491.

It is an arithmetic number, because the mean of its divisors is an integer number (4562491).

Almost surely, 2^9124981 is an apocalyptic number.

It is an amenable number.

9124981 is a deficient number, since it is larger than the sum of its proper divisors (1).

9124981 is an equidigital number, since it uses as much as digits as its factorization.

9124981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 34.

The square root of 9124981 is about 3020.7583484946. The cubic root of 9124981 is about 208.9668147825.

The spelling of 9124981 in words is "nine million, one hundred twenty-four thousand, nine hundred eighty-one".