1123185753 has 6 divisors (see below), whose sum is σ = 1622379434. Its totient is φ = 748790496.

The previous prime is 1123185697. The next prime is 1123185781. The reversal of 1123185753 is 3575813211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 975125529 + 148060224 = 31227^2 + 12168^2 .

It is not a de Polignac number, because 1123185753 - 2¹⁶ = 1123120217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123185793) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62399200 + ... + 62399217.

Almost surely, 2^1123185753 is an apocalyptic number.

It is an amenable number.

1123185753 is a deficient number, since it is larger than the sum of its proper divisors (499193681).

1123185753 is a wasteful number, since it uses less digits than its factorization.

1123185753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124798423 (or 124798420 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 1123185753 is about 33513.9635525254. The cubic root of 1123185753 is about 1039.4825313376.

Adding to 1123185753 its reverse (3575813211), we get a palindrome (4698998964).

The spelling of 1123185753 in words is "one billion, one hundred twenty-three million, one hundred eighty-five thousand, seven hundred fifty-three".