1123154752 has 84 divisors (see below), whose sum is σ = 2374253316. Its totient is φ = 527063040.

The previous prime is 1123154749. The next prime is 1123154789. The reversal of 1123154752 is 2574513211.

It can be written as a sum of positive squares in 2 ways, for example, as 905769216 + 217385536 = 30096^2 + 14744^2 .

It is a super-2 number, since 2×1123154752² = 2522953193880363008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3996852 + ... + 3997132.

Almost surely, 2^1123154752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123154752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1187126658).

1123154752 is an abundant number, since it is smaller than the sum of its proper divisors (1251098564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123154752 is a wasteful number, since it uses less digits than its factorization.

1123154752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 475 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 1123154752 is about 33513.5010406254. The cubic root of 1123154752 is about 1039.4729676792.

Adding to 1123154752 its reverse (2574513211), we get a palindrome (3697667963).

The spelling of 1123154752 in words is "one billion, one hundred twenty-three million, one hundred fifty-four thousand, seven hundred fifty-two".