851493299 has 2 divisors, whose sum is σ = 851493300. Its totient is φ = 851493298.

The previous prime is 851493287. The next prime is 851493311. The reversal of 851493299 is 992394158.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (851493287) and next prime (851493311).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-851493299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (851493499) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425746649 + 425746650.

It is an arithmetic number, because the mean of its divisors is an integer number (425746650).

Almost surely, 2^851493299 is an apocalyptic number.

851493299 is a deficient number, since it is larger than the sum of its proper divisors (1).

851493299 is an equidigital number, since it uses as much as digits as its factorization.

851493299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 50.

The square root of 851493299 is about 29180.3581026690. The cubic root of 851493299 is about 947.8226399879.

The spelling of 851493299 in words is "eight hundred fifty-one million, four hundred ninety-three thousand, two hundred ninety-nine".