1143541417 has 2 divisors, whose sum is σ = 1143541418. Its totient is φ = 1143541416.

The previous prime is 1143541411. The next prime is 1143541447. The reversal of 1143541417 is 7141453411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 960318121 + 183223296 = 30989^2 + 13536^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143541417 - 2¹⁹ = 1143017129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143541411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571770708 + 571770709.

It is an arithmetic number, because the mean of its divisors is an integer number (571770709).

Almost surely, 2^1143541417 is an apocalyptic number.

It is an amenable number.

1143541417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143541417 is an equidigital number, since it uses as much as digits as its factorization.

1143541417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 1143541417 is about 33816.2892257563. The cubic root of 1143541417 is about 1045.7245395413.

Adding to 1143541417 its reverse (7141453411), we get a palindrome (8284994828).

The spelling of 1143541417 in words is "one billion, one hundred forty-three million, five hundred forty-one thousand, four hundred seventeen".