1143146617 has 2 divisors, whose sum is σ = 1143146618. Its totient is φ = 1143146616.

The previous prime is 1143146603. The next prime is 1143146671. The reversal of 1143146617 is 7166413411.

Together with next prime (1143146671) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 841638121 + 301508496 = 29011^2 + 17364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143146617 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143146717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571573308 + 571573309.

It is an arithmetic number, because the mean of its divisors is an integer number (571573309).

Almost surely, 2^1143146617 is an apocalyptic number.

It is an amenable number.

1143146617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143146617 is an equidigital number, since it uses as much as digits as its factorization.

1143146617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 1143146617 is about 33810.4512983781. The cubic root of 1143146617 is about 1045.6041825629.

The spelling of 1143146617 in words is "one billion, one hundred forty-three million, one hundred forty-six thousand, six hundred seventeen".