1165230343 has 4 divisors (see below), whose sum is σ = 1165466088. Its totient is φ = 1164994600.

The previous prime is 1165230323. The next prime is 1165230377. The reversal of 1165230343 is 3430325611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3430325611 = 37 ⋅92711503.

It is a cyclic number.

It is not a de Polignac number, because 1165230343 - 2¹³ = 1165222151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165230323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110296 + ... + 120397.

It is an arithmetic number, because the mean of its divisors is an integer number (291366522).

Almost surely, 2^1165230343 is an apocalyptic number.

1165230343 is a deficient number, since it is larger than the sum of its proper divisors (235745).

1165230343 is an equidigital number, since it uses as much as digits as its factorization.

1165230343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235744.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1165230343 is about 34135.4704523023. The cubic root of 1165230343 is about 1052.2944061611.

Adding to 1165230343 its reverse (3430325611), we get a palindrome (4595555954).

The spelling of 1165230343 in words is "one billion, one hundred sixty-five million, two hundred thirty thousand, three hundred forty-three".