1152399136 has 96 divisors (see below), whose sum is σ = 2674788480. Its totient is φ = 478464000.

The previous prime is 1152399119. The next prime is 1152399137. The reversal of 1152399136 is 6319932511.

It is not an unprimeable number, because it can be changed into a prime (1152399137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1643586 + ... + 1644286.

It is an arithmetic number, because the mean of its divisors is an integer number (27862380).

Almost surely, 2^1152399136 is an apocalyptic number.

1152399136 is a gapful number since it is divisible by the number (16) 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 1152399136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337394240).

1152399136 is an abundant number, since it is smaller than the sum of its proper divisors (1522389344).

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

1152399136 is a wasteful number, since it uses less digits than its factorization.

1152399136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 930 counting only the distinct ones).

The product of its digits is 43740, while the sum is 40.

The square root of 1152399136 is about 33947.0048163310. The cubic root of 1152399136 is about 1048.4176122499.

The spelling of 1152399136 in words is "one billion, one hundred fifty-two million, three hundred ninety-nine thousand, one hundred thirty-six".