1685056229 has 2 divisors, whose sum is σ = 1685056230. Its totient is φ = 1685056228.

The previous prime is 1685056187. The next prime is 1685056271. The reversal of 1685056229 is 9226505861.

It is a balanced prime because it is at equal distance from previous prime (1685056187) and next prime (1685056271).

It can be written as a sum of positive squares in only one way, i.e., 1383096100 + 301960129 = 37190^2 + 17377^2 .

It is a cyclic number.

It is not a de Polignac number, because 1685056229 - 2⁸ = 1685055973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1685056229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1685056129) 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, 842528114 + 842528115.

It is an arithmetic number, because the mean of its divisors is an integer number (842528115).

Almost surely, 2^1685056229 is an apocalyptic number.

It is an amenable number.

1685056229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1685056229 is an equidigital number, since it uses as much as digits as its factorization.

1685056229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 1685056229 is about 41049.4364029520. The cubic root of 1685056229 is about 1189.9758084200.

The spelling of 1685056229 in words is "one billion, six hundred eighty-five million, fifty-six thousand, two hundred twenty-nine".