1145450239 has 2 divisors, whose sum is σ = 1145450240. Its totient is φ = 1145450238.

The previous prime is 1145450233. The next prime is 1145450261. The reversal of 1145450239 is 9320545411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1145450239 - 2³ = 1145450231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145450231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572725119 + 572725120.

It is an arithmetic number, because the mean of its divisors is an integer number (572725120).

Almost surely, 2^1145450239 is an apocalyptic number.

1145450239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145450239 is an equidigital number, since it uses as much as digits as its factorization.

1145450239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1145450239 is about 33844.5008679401. The cubic root of 1145450239 is about 1046.3060641402.

The spelling of 1145450239 in words is "one billion, one hundred forty-five million, four hundred fifty thousand, two hundred thirty-nine".