1150531326 has 96 divisors (see below), whose sum is σ = 2957760000. Its totient is φ = 316249920.

The previous prime is 1150531279. The next prime is 1150531337. The reversal of 1150531326 is 6231350511.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1150531326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1823031 + ... + 1823661.

It is an arithmetic number, because the mean of its divisors is an integer number (30810000).

Almost surely, 2^1150531326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1150531326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1478880000).

1150531326 is an abundant number, since it is smaller than the sum of its proper divisors (1807228674).

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

1150531326 is a wasteful number, since it uses less digits than its factorization.

1150531326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1150531326 is about 33919.4829854466. The cubic root of 1150531326 is about 1047.8508804154.

Adding to 1150531326 its reverse (6231350511), we get a palindrome (7381881837).

The spelling of 1150531326 in words is "one billion, one hundred fifty million, five hundred thirty-one thousand, three hundred twenty-six".