1121542244 has 12 divisors (see below), whose sum is σ = 1966152300. Its totient is φ = 559784448.

The previous prime is 1121542243. The next prime is 1121542267. The reversal of 1121542244 is 4422451211.

It can be written as a sum of positive squares in 2 ways, for example, as 177209344 + 944332900 = 13312^2 + 30730^2 .

It is not an unprimeable number, because it can be changed into a prime (1121542243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244109 + ... + 248660.

It is an arithmetic number, because the mean of its divisors is an integer number (163846025).

Almost surely, 2^1121542244 is an apocalyptic number.

It is an amenable number.

1121542244 is a deficient number, since it is larger than the sum of its proper divisors (844610056).

1121542244 is a wasteful number, since it uses less digits than its factorization.

1121542244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493342 (or 493340 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 1121542244 is about 33489.4348115939. The cubic root of 1121542244 is about 1038.9752739392.

Adding to 1121542244 its reverse (4422451211), we get a palindrome (5543993455).

The spelling of 1121542244 in words is "one billion, one hundred twenty-one million, five hundred forty-two thousand, two hundred forty-four".