1024818649 has 2 divisors, whose sum is σ = 1024818650. Its totient is φ = 1024818648.

The previous prime is 1024818647. The next prime is 1024818661. The reversal of 1024818649 is 9468184201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 787812624 + 237006025 = 28068^2 + 15395^2 .

It is a cyclic number.

It is not a de Polignac number, because 1024818649 - 2¹ = 1024818647 is a prime.

Together with 1024818647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1024818643) 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, 512409324 + 512409325.

It is an arithmetic number, because the mean of its divisors is an integer number (512409325).

Almost surely, 2^1024818649 is an apocalyptic number.

It is an amenable number.

1024818649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1024818649 is an equidigital number, since it uses as much as digits as its factorization.

1024818649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1024818649 is about 32012.7888350890. The cubic root of 1024818649 is about 1008.2053707403.

The spelling of 1024818649 in words is "one billion, twenty-four million, eight hundred eighteen thousand, six hundred forty-nine".