1152165323 has 4 divisors (see below), whose sum is σ = 1152516408. Its totient is φ = 1151814240.

The previous prime is 1152165319. The next prime is 1152165341. The reversal of 1152165323 is 3235612511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3235612511 = 6547 ⋅494213.

It is a cyclic number.

It is not a de Polignac number, because 1152165323 - 2² = 1152165319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152165523) 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, 170573 + ... + 177198.

It is an arithmetic number, because the mean of its divisors is an integer number (288129102).

Almost surely, 2^1152165323 is an apocalyptic number.

1152165323 is a deficient number, since it is larger than the sum of its proper divisors (351085).

1152165323 is an equidigital number, since it uses as much as digits as its factorization.

1152165323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351084.

The product of its digits is 5400, while the sum is 29.

The square root of 1152165323 is about 33943.5608473831. The cubic root of 1152165323 is about 1048.3467021402.

Adding to 1152165323 its reverse (3235612511), we get a palindrome (4387777834).

The spelling of 1152165323 in words is "one billion, one hundred fifty-two million, one hundred sixty-five thousand, three hundred twenty-three".