851136073 has 2 divisors, whose sum is σ = 851136074. Its totient is φ = 851136072.

The previous prime is 851136067. The next prime is 851136079. The reversal of 851136073 is 370631158.

It is a balanced prime because it is at equal distance from previous prime (851136067) and next prime (851136079).

It can be written as a sum of positive squares in only one way, i.e., 849605904 + 1530169 = 29148^2 + 1237^2 .

It is a cyclic number.

It is not a de Polignac number, because 851136073 - 2⁹ = 851135561 is a prime.

It is a super-2 number, since 2×851136073² = 1448865229523722658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (851136079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425568036 + 425568037.

It is an arithmetic number, because the mean of its divisors is an integer number (425568037).

Almost surely, 2^851136073 is an apocalyptic number.

It is an amenable number.

851136073 is a deficient number, since it is larger than the sum of its proper divisors (1).

851136073 is an equidigital number, since it uses as much as digits as its factorization.

851136073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 851136073 is about 29174.2364595888. The cubic root of 851136073 is about 947.6900751355.

The spelling of 851136073 in words is "eight hundred fifty-one million, one hundred thirty-six thousand, seventy-three".