1142545242 has 16 divisors (see below), whose sum is σ = 2314016640. Its totient is φ = 376027392.

The previous prime is 1142545211. The next prime is 1142545247. The reversal of 1142545242 is 2425452411.

It is not an unprimeable number, because it can be changed into a prime (1142545247) 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, 1204743 + ... + 1205690.

It is an arithmetic number, because the mean of its divisors is an integer number (144626040).

Almost surely, 2^1142545242 is an apocalyptic number.

1142545242 is an abundant number, since it is smaller than the sum of its proper divisors (1171471398).

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

1142545242 is a wasteful number, since it uses less digits than its factorization.

1142545242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410517.

The product of its digits is 12800, while the sum is 30.

The square root of 1142545242 is about 33801.5567984671. The cubic root of 1142545242 is about 1045.4207967801.

Adding to 1142545242 its reverse (2425452411), we get a palindrome (3567997653).

The spelling of 1142545242 in words is "one billion, one hundred forty-two million, five hundred forty-five thousand, two hundred forty-two".