1145030209 has 2 divisors, whose sum is σ = 1145030210. Its totient is φ = 1145030208.

The previous prime is 1145030197. The next prime is 1145030221. The reversal of 1145030209 is 9020305411.

It is a balanced prime because it is at equal distance from previous prime (1145030197) and next prime (1145030221).

It can be written as a sum of positive squares in only one way, i.e., 928116225 + 216913984 = 30465^2 + 14728^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145030209 - 2²³ = 1136641601 is a prime.

It is a super-2 number, since 2×1145030209² = 2622188359045167362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1145033209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572515104 + 572515105.

It is an arithmetic number, because the mean of its divisors is an integer number (572515105).

Almost surely, 2^1145030209 is an apocalyptic number.

It is an amenable number.

1145030209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145030209 is an equidigital number, since it uses as much as digits as its factorization.

1145030209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1145030209 is about 33838.2950072843. The cubic root of 1145030209 is about 1046.1781570371.

The spelling of 1145030209 in words is "one billion, one hundred forty-five million, thirty thousand, two hundred nine".