1131252522 has 32 divisors (see below), whose sum is σ = 2431363392. Its totient is φ = 349603584.

The previous prime is 1131252497. The next prime is 1131252523. The reversal of 1131252522 is 2252521311.

It is a junction number, because it is equal to n+sod(n) for n = 1131252492 and 1131252501.

It is not an unprimeable number, because it can be changed into a prime (1131252523) 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, 75933 + ... + 89600.

It is an arithmetic number, because the mean of its divisors is an integer number (75980106).

Almost surely, 2^1131252522 is an apocalyptic number.

1131252522 is an abundant number, since it is smaller than the sum of its proper divisors (1300110870).

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

1131252522 is a wasteful number, since it uses less digits than its factorization.

1131252522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165622.

The product of its digits is 1200, while the sum is 24.

The square root of 1131252522 is about 33634.0976094201. The cubic root of 1131252522 is about 1041.9651336754.

Adding to 1131252522 its reverse (2252521311), we get a palindrome (3383773833).

The spelling of 1131252522 in words is "one billion, one hundred thirty-one million, two hundred fifty-two thousand, five hundred twenty-two".