1164123263 has 4 divisors (see below), whose sum is σ = 1232601120. Its totient is φ = 1095645408.

The previous prime is 1164123241. The next prime is 1164123269. The reversal of 1164123263 is 3623214611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1164123263 - 2⁶ = 1164123199 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 (1164123269) 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 in 3 ways as a sum of consecutive naturals, for example, 34238903 + ... + 34238936.

It is an arithmetic number, because the mean of its divisors is an integer number (308150280).

Almost surely, 2^1164123263 is an apocalyptic number.

1164123263 is a deficient number, since it is larger than the sum of its proper divisors (68477857).

1164123263 is an equidigital number, since it uses as much as digits as its factorization.

1164123263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68477856.

The product of its digits is 5184, while the sum is 29.

The square root of 1164123263 is about 34119.2506218997. The cubic root of 1164123263 is about 1051.9610405341.

Adding to 1164123263 its reverse (3623214611), we get a palindrome (4787337874).

The spelling of 1164123263 in words is "one billion, one hundred sixty-four million, one hundred twenty-three thousand, two hundred sixty-three".