1068144653 has 2 divisors, whose sum is σ = 1068144654. Its totient is φ = 1068144652.

The previous prime is 1068144611. The next prime is 1068144677. The reversal of 1068144653 is 3564418601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 761649604 + 306495049 = 27598^2 + 17507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068144653 - 2⁸ = 1068144397 is a prime.

It is a super-2 number, since 2×1068144653² = 2281865999464980818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1068144853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534072326 + 534072327.

It is an arithmetic number, because the mean of its divisors is an integer number (534072327).

Almost surely, 2^1068144653 is an apocalyptic number.

It is an amenable number.

1068144653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068144653 is an equidigital number, since it uses as much as digits as its factorization.

1068144653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1068144653 is about 32682.4823567611. The cubic root of 1068144653 is about 1022.2176065906.

The spelling of 1068144653 in words is "one billion, sixty-eight million, one hundred forty-four thousand, six hundred fifty-three".