1145368009 has 2 divisors, whose sum is σ = 1145368010. Its totient is φ = 1145368008.

The previous prime is 1145367989. The next prime is 1145368033. The reversal of 1145368009 is 9008635411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1070925625 + 74442384 = 32725^2 + 8628^2 .

It is an emirp because it is prime and its reverse (9008635411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145368009 - 2⁹ = 1145367497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145368109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572684004 + 572684005.

It is an arithmetic number, because the mean of its divisors is an integer number (572684005).

Almost surely, 2^1145368009 is an apocalyptic number.

It is an amenable number.

1145368009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145368009 is an equidigital number, since it uses as much as digits as its factorization.

1145368009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1145368009 is about 33843.2860254438. The cubic root of 1145368009 is about 1046.2810260071.

The spelling of 1145368009 in words is "one billion, one hundred forty-five million, three hundred sixty-eight thousand, nine".