1135431528 has 128 divisors (see below), whose sum is σ = 3611520000. Its totient is φ = 294893760.

The previous prime is 1135431511. The next prime is 1135431533. The reversal of 1135431528 is 8251345311.

1135431528 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84283 + ... + 96821.

It is an arithmetic number, because the mean of its divisors is an integer number (28215000).

Almost surely, 2^1135431528 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 1135431528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805760000).

1135431528 is an abundant number, since it is smaller than the sum of its proper divisors (2476088472).

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

1135431528 is a wasteful number, since it uses less digits than its factorization.

1135431528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12580 (or 12562 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 1135431528 is about 33696.1648856365. The cubic root of 1135431528 is about 1043.2466122555.

Adding to 1135431528 its reverse (8251345311), we get a palindrome (9386776839).

The spelling of 1135431528 in words is "one billion, one hundred thirty-five million, four hundred thirty-one thousand, five hundred twenty-eight".