9050981 has 2 divisors, whose sum is σ = 9050982. Its totient is φ = 9050980.

The previous prime is 9050957. The next prime is 9050989. The reversal of 9050981 is 1890509.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4990756 + 4060225 = 2234^2 + 2015^2 .

It is an emirp because it is prime and its reverse (1890509) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9050981 is a prime.

It is a super-2 number, since 2×9050981² = 163840514124722, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9050989) 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 as a sum of consecutive naturals, namely, 4525490 + 4525491.

It is an arithmetic number, because the mean of its divisors is an integer number (4525491).

Almost surely, 2^9050981 is an apocalyptic number.

It is an amenable number.

9050981 is a deficient number, since it is larger than the sum of its proper divisors (1).

9050981 is an equidigital number, since it uses as much as digits as its factorization.

9050981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 9050981 is about 3008.4848345970. The cubic root of 9050981 is about 208.4004013756.

The spelling of 9050981 in words is "nine million, fifty thousand, nine hundred eighty-one".