1165150043 has 2 divisors, whose sum is σ = 1165150044. Its totient is φ = 1165150042.

The previous prime is 1165150037. The next prime is 1165150067. The reversal of 1165150043 is 3400515611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1165150043 - 2²² = 1160955739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1165149994 and 1165150021.

It is not a weakly prime, because it can be changed into another prime (1165150073) 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, 582575021 + 582575022.

It is an arithmetic number, because the mean of its divisors is an integer number (582575022).

Almost surely, 2^1165150043 is an apocalyptic number.

1165150043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165150043 is an equidigital number, since it uses as much as digits as its factorization.

1165150043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1165150043 is about 34134.2942361491. The cubic root of 1165150043 is about 1052.2702332061.

Adding to 1165150043 its reverse (3400515611), we get a palindrome (4565665654).

The spelling of 1165150043 in words is "one billion, one hundred sixty-five million, one hundred fifty thousand, forty-three".