1145262439 has 2 divisors, whose sum is σ = 1145262440. Its totient is φ = 1145262438.

The previous prime is 1145262431. The next prime is 1145262493. The reversal of 1145262439 is 9342625411.

It is a happy number.

Together with next prime (1145262493) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1145262439 - 2³ = 1145262431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145262398 and 1145262407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145262431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572631219 + 572631220.

It is an arithmetic number, because the mean of its divisors is an integer number (572631220).

Almost surely, 2^1145262439 is an apocalyptic number.

1145262439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145262439 is an equidigital number, since it uses as much as digits as its factorization.

1145262439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 1145262439 is about 33841.7263005302. The cubic root of 1145262439 is about 1046.2488793431.

The spelling of 1145262439 in words is "one billion, one hundred forty-five million, two hundred sixty-two thousand, four hundred thirty-nine".