1183133952 has 864 divisors, whose sum is σ = 4999787520. Its totient is φ = 268738560.

The previous prime is 1183133927. The next prime is 1183133957. The reversal of 1183133952 is 2593313811.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (19440) is a multiple of the sum of its prime factors (81).

It is not an unprimeable number, because it can be changed into a prime (1183133957) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 62270199 + ... + 62270217.

Almost surely, 2^1183133952 is an apocalyptic number.

1183133952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1183133952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2499893760).

1183133952 is an abundant number, since it is smaller than the sum of its proper divisors (3816653568).

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

1183133952 is a wasteful number, since it uses less digits than its factorization.

1183133952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 55 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1183133952 is about 34396.7142616849. The cubic root of 1183133952 is about 1057.6564911008.

It can be divided in two parts, 118313 and 3952, that added together give a triangular number (122265 = T₄₉₄).

The spelling of 1183133952 in words is "one billion, one hundred eighty-three million, one hundred thirty-three thousand, nine hundred fifty-two".