412856189 has 2 divisors, whose sum is σ = 412856190. Its totient is φ = 412856188.

The previous prime is 412856173. The next prime is 412856207. The reversal of 412856189 is 981658214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224700100 + 188156089 = 14990^2 + 13717^2 .

It is a cyclic number.

It is not a de Polignac number, because 412856189 - 2⁴ = 412856173 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412856489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206428094 + 206428095.

It is an arithmetic number, because the mean of its divisors is an integer number (206428095).

Almost surely, 2^412856189 is an apocalyptic number.

It is an amenable number.

412856189 is a deficient number, since it is larger than the sum of its proper divisors (1).

412856189 is an equidigital number, since it uses as much as digits as its factorization.

412856189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 44.

The square root of 412856189 is about 20318.8628864905. The cubic root of 412856189 is about 744.6169759110.

It can be divided in two parts, 41285 and 6189, that added together give a palindrome (47474).

The spelling of 412856189 in words is "four hundred twelve million, eight hundred fifty-six thousand, one hundred eighty-nine".