1143394601 has 2 divisors, whose sum is σ = 1143394602. Its totient is φ = 1143394600.

The previous prime is 1143394543. The next prime is 1143394613. The reversal of 1143394601 is 1064933411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 781482025 + 361912576 = 27955^2 + 19024^2 .

It is an emirp because it is prime and its reverse (1064933411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1143394601 - 2¹⁸ = 1143132457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1143394621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571697300 + 571697301.

It is an arithmetic number, because the mean of its divisors is an integer number (571697301).

Almost surely, 2^1143394601 is an apocalyptic number.

It is an amenable number.

1143394601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143394601 is an equidigital number, since it uses as much as digits as its factorization.

1143394601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1143394601 is about 33814.1183679244. The cubic root of 1143394601 is about 1045.6797851020.

The spelling of 1143394601 in words is "one billion, one hundred forty-three million, three hundred ninety-four thousand, six hundred one".