1125268663 has 4 divisors (see below), whose sum is σ = 1127267928. Its totient is φ = 1123269400.

The previous prime is 1125268621. The next prime is 1125268681. The reversal of 1125268663 is 3668625211.

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 1125268663 - 2²⁹ = 588397751 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 (1125263663) 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, 998788 + ... + 999913.

It is an arithmetic number, because the mean of its divisors is an integer number (281816982).

Almost surely, 2^1125268663 is an apocalyptic number.

1125268663 is a deficient number, since it is larger than the sum of its proper divisors (1999265).

1125268663 is an equidigital number, since it uses as much as digits as its factorization.

1125268663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999264.

The product of its digits is 103680, while the sum is 40.

The square root of 1125268663 is about 33545.0244149561. The cubic root of 1125268663 is about 1040.1246962786.

The spelling of 1125268663 in words is "one billion, one hundred twenty-five million, two hundred sixty-eight thousand, six hundred sixty-three".