1125117775 has 24 divisors (see below), whose sum is σ = 1470637520. Its totient is φ = 851523840.

The previous prime is 1125117757. The next prime is 1125117781. The reversal of 1125117775 is 5777115211.

It is a de Polignac number, because none of the positive numbers 2^k-1125117775 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489529 + ... + 491821.

Almost surely, 2^1125117775 is an apocalyptic number.

1125117775 is a deficient number, since it is larger than the sum of its proper divisors (345519745).

1125117775 is a wasteful number, since it uses less digits than its factorization.

1125117775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355 (or 3350 counting only the distinct ones).

The product of its digits is 17150, while the sum is 37.

The square root of 1125117775 is about 33542.7753025894. The cubic root of 1125117775 is about 1040.0782038702.

The spelling of 1125117775 in words is "one billion, one hundred twenty-five million, one hundred seventeen thousand, seven hundred seventy-five".