851179013 has 2 divisors, whose sum is σ = 851179014. Its totient is φ = 851179012.

The previous prime is 851179003. The next prime is 851179033. The reversal of 851179013 is 310971158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 850713889 + 465124 = 29167^2 + 682^2 .

It is a cyclic number.

It is not a de Polignac number, because 851179013 - 2¹⁰ = 851177989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (851179003) 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, 425589506 + 425589507.

It is an arithmetic number, because the mean of its divisors is an integer number (425589507).

Almost surely, 2^851179013 is an apocalyptic number.

It is an amenable number.

851179013 is a deficient number, since it is larger than the sum of its proper divisors (1).

851179013 is an equidigital number, since it uses as much as digits as its factorization.

851179013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 851179013 is about 29174.9723735945. The cubic root of 851179013 is about 947.7060119243.

The spelling of 851179013 in words is "eight hundred fifty-one million, one hundred seventy-nine thousand, thirteen".