1143030509 has 2 divisors, whose sum is σ = 1143030510. Its totient is φ = 1143030508.

The previous prime is 1143030503. The next prime is 1143030527. The reversal of 1143030509 is 9050303411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1137375625 + 5654884 = 33725^2 + 2378^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143030509 - 2²⁸ = 874595053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143030503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571515254 + 571515255.

It is an arithmetic number, because the mean of its divisors is an integer number (571515255).

Almost surely, 2^1143030509 is an apocalyptic number.

It is an amenable number.

1143030509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143030509 is an equidigital number, since it uses as much as digits as its factorization.

1143030509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1143030509 is about 33808.7342117388. The cubic root of 1143030509 is about 1045.5687811195.

The spelling of 1143030509 in words is "one billion, one hundred forty-three million, thirty thousand, five hundred nine".