1150543465 has 4 divisors (see below), whose sum is σ = 1380652164. Its totient is φ = 920434768.

The previous prime is 1150543463. The next prime is 1150543489. The reversal of 1150543465 is 5643450511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5643450511 = 317 ⋅17802683.

It can be written as a sum of positive squares in 2 ways, for example, as 638471824 + 512071641 = 25268^2 + 22629^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150543465 - 2¹ = 1150543463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1150543465.

It is not an unprimeable number, because it can be changed into a prime (1150543463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115054342 + ... + 115054351.

It is an arithmetic number, because the mean of its divisors is an integer number (345163041).

Almost surely, 2^1150543465 is an apocalyptic number.

It is an amenable number.

1150543465 is a deficient number, since it is larger than the sum of its proper divisors (230108699).

1150543465 is an equidigital number, since it uses as much as digits as its factorization.

1150543465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230108698.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 1150543465 is about 33919.6619234331. The cubic root of 1150543465 is about 1047.8545656163.

Adding to 1150543465 its reverse (5643450511), we get a palindrome (6793993976).

The spelling of 1150543465 in words is "one billion, one hundred fifty million, five hundred forty-three thousand, four hundred sixty-five".