9863149 has 2 divisors, whose sum is σ = 9863150. Its totient is φ = 9863148.

The previous prime is 9863131. The next prime is 9863171. The reversal of 9863149 is 9413689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6215049 + 3648100 = 2493^2 + 1910^2 .

It is a cyclic number.

It is not a de Polignac number, because 9863149 - 2⁹ = 9862637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9863129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4931574 + 4931575.

It is an arithmetic number, because the mean of its divisors is an integer number (4931575).

Almost surely, 2^9863149 is an apocalyptic number.

It is an amenable number.

9863149 is a deficient number, since it is larger than the sum of its proper divisors (1).

9863149 is an equidigital number, since it uses as much as digits as its factorization.

9863149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 9863149 is about 3140.5650765428. The cubic root of 9863149 is about 214.4561629454.

The spelling of 9863149 in words is "nine million, eight hundred sixty-three thousand, one hundred forty-nine".