1068421229 has 2 divisors, whose sum is σ = 1068421230. Its totient is φ = 1068421228.

The previous prime is 1068421183. The next prime is 1068421241. The reversal of 1068421229 is 9221248601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600348004 + 468073225 = 24502^2 + 21635^2 .

It is an emirp because it is prime and its reverse (9221248601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1068421229 - 2²⁰ = 1067372653 is a prime.

It is a super-2 number, since 2×1068421229² = 2283047845155740882, which contains 22 as substring.

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 (1068421259) 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, 534210614 + 534210615.

It is an arithmetic number, because the mean of its divisors is an integer number (534210615).

Almost surely, 2^1068421229 is an apocalyptic number.

It is an amenable number.

1068421229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068421229 is an equidigital number, since it uses as much as digits as its factorization.

1068421229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1068421229 is about 32686.7133404385. The cubic root of 1068421229 is about 1022.3058269946.

It can be divided in two parts, 10684 and 21229, that added together give a palindrome (31913).

The spelling of 1068421229 in words is "one billion, sixty-eight million, four hundred twenty-one thousand, two hundred twenty-nine".