856182413 has 2 divisors, whose sum is σ = 856182414. Its totient is φ = 856182412.

The previous prime is 856182401. The next prime is 856182421. The reversal of 856182413 is 314281658.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 855094564 + 1087849 = 29242^2 + 1043^2 .

It is a cyclic number.

It is not a de Polignac number, because 856182413 - 2⁸ = 856182157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (856182443) 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, 428091206 + 428091207.

It is an arithmetic number, because the mean of its divisors is an integer number (428091207).

Almost surely, 2^856182413 is an apocalyptic number.

It is an amenable number.

856182413 is a deficient number, since it is larger than the sum of its proper divisors (1).

856182413 is an equidigital number, since it uses as much as digits as its factorization.

856182413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 38.

The square root of 856182413 is about 29260.5948845884. The cubic root of 856182413 is about 949.5593202657.

The spelling of 856182413 in words is "eight hundred fifty-six million, one hundred eighty-two thousand, four hundred thirteen".