1131293152 has 96 divisors (see below), whose sum is σ = 2600488800. Its totient is φ = 478740480.

The previous prime is 1131293147. The next prime is 1131293153. The reversal of 1131293152 is 2513921311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131293152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131293153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579474 + ... + 581422.

It is an arithmetic number, because the mean of its divisors is an integer number (27088425).

Almost surely, 2^1131293152 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 1131293152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1300244400).

1131293152 is an abundant number, since it is smaller than the sum of its proper divisors (1469195648).

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

1131293152 is a wasteful number, since it uses less digits than its factorization.

1131293152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084 (or 2076 counting only the distinct ones).

The product of its digits is 1620, while the sum is 28.

The square root of 1131293152 is about 33634.7016041469. The cubic root of 1131293152 is about 1041.9776079125.

It can be divided in two parts, 113129 and 3152, that added together give a square (116281 = 341²).

The spelling of 1131293152 in words is "one billion, one hundred thirty-one million, two hundred ninety-three thousand, one hundred fifty-two".