1142521232 has 40 divisors (see below), whose sum is σ = 2236466232. Its totient is φ = 565401600.

The previous prime is 1142521231. The next prime is 1142521249. The reversal of 1142521232 is 2321252411.

It can be written as a sum of positive squares in 4 ways, for example, as 16516096 + 1126005136 = 4064^2 + 33556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1142521198 and 1142521207.

It is not an unprimeable number, because it can be changed into a prime (1142521231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697118 + ... + 698754.

Almost surely, 2^1142521232 is an apocalyptic number.

It is an amenable number.

1142521232 is a deficient number, since it is larger than the sum of its proper divisors (1093945000).

1142521232 is a wasteful number, since it uses less digits than its factorization.

1142521232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2061 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 1142521232 is about 33801.2016354449. The cubic root of 1142521232 is about 1045.4134737355.

Adding to 1142521232 its reverse (2321252411), we get a palindrome (3463773643).

The spelling of 1142521232 in words is "one billion, one hundred forty-two million, five hundred twenty-one thousand, two hundred thirty-two".