1145916539 has 2 divisors, whose sum is σ = 1145916540. Its totient is φ = 1145916538.

The previous prime is 1145916523. The next prime is 1145916547. The reversal of 1145916539 is 9356195411.

It is a strong prime.

It is an emirp because it is prime and its reverse (9356195411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145916539 - 2⁴ = 1145916523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1145916539.

It is not a weakly prime, because it can be changed into another prime (1145916559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572958269 + 572958270.

It is an arithmetic number, because the mean of its divisors is an integer number (572958270).

Almost surely, 2^1145916539 is an apocalyptic number.

1145916539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145916539 is an equidigital number, since it uses as much as digits as its factorization.

1145916539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 44.

The square root of 1145916539 is about 33851.3890261537. The cubic root of 1145916539 is about 1046.4480247163.

The spelling of 1145916539 in words is "one billion, one hundred forty-five million, nine hundred sixteen thousand, five hundred thirty-nine".