851148743 has 2 divisors, whose sum is σ = 851148744. Its totient is φ = 851148742.

The previous prime is 851148731. The next prime is 851148763. The reversal of 851148743 is 347841158.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-851148743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 851148743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (851148763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425574371 + 425574372.

It is an arithmetic number, because the mean of its divisors is an integer number (425574372).

Almost surely, 2^851148743 is an apocalyptic number.

851148743 is a deficient number, since it is larger than the sum of its proper divisors (1).

851148743 is an equidigital number, since it uses as much as digits as its factorization.

851148743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 41.

The square root of 851148743 is about 29174.4536024242. The cubic root of 851148743 is about 947.6947775461.

The spelling of 851148743 in words is "eight hundred fifty-one million, one hundred forty-eight thousand, seven hundred forty-three".