1142530224 has 40 divisors (see below), whose sum is σ = 3219859392. Its totient is φ = 346221120.

The previous prime is 1142530219. The next prime is 1142530229. The reversal of 1142530224 is 4220352411.

It is an interprime number because it is at equal distance from previous prime (1142530219) and next prime (1142530229).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1142530194 and 1142530203.

It is not an unprimeable number, because it can be changed into a prime (1142530229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081414 + ... + 1082469.

Almost surely, 2^1142530224 is an apocalyptic number.

It is an amenable number.

1142530224 is an abundant number, since it is smaller than the sum of its proper divisors (2077329168).

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

1142530224 is a wasteful number, since it uses less digits than its factorization.

1142530224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163905 (or 2163899 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1142530224 is about 33801.3346482058. The cubic root of 1142530224 is about 1045.4162163055.

Adding to 1142530224 its reverse (4220352411), we get a palindrome (5362882635).

The spelling of 1142530224 in words is "one billion, one hundred forty-two million, five hundred thirty thousand, two hundred twenty-four".