849149513 has 2 divisors, whose sum is σ = 849149514. Its totient is φ = 849149512.

The previous prime is 849149459. The next prime is 849149527. The reversal of 849149513 is 315941948.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 583850569 + 265298944 = 24163^2 + 16288^2 .

It is a cyclic number.

It is not a de Polignac number, because 849149513 - 2⁶ = 849149449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (849149533) 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, 424574756 + 424574757.

It is an arithmetic number, because the mean of its divisors is an integer number (424574757).

Almost surely, 2^849149513 is an apocalyptic number.

It is an amenable number.

849149513 is a deficient number, since it is larger than the sum of its proper divisors (1).

849149513 is an equidigital number, since it uses as much as digits as its factorization.

849149513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 849149513 is about 29140.1700921597. The cubic root of 849149513 is about 946.9521947659.

The spelling of 849149513 in words is "eight hundred forty-nine million, one hundred forty-nine thousand, five hundred thirteen".