1142505566 has 8 divisors (see below), whose sum is σ = 1722370800. Its totient is φ = 568381968.

The previous prime is 1142505557. The next prime is 1142505599. The reversal of 1142505566 is 6655052411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434911 + ... + 1435706.

It is an arithmetic number, because the mean of its divisors is an integer number (215296350).

Almost surely, 2^1142505566 is an apocalyptic number.

1142505566 is a deficient number, since it is larger than the sum of its proper divisors (579865234).

1142505566 is a wasteful number, since it uses less digits than its factorization.

1142505566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870818.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 1142505566 is about 33800.9698973269. The cubic root of 1142505566 is about 1045.4086955537.

Adding to 1142505566 its reverse (6655052411), we get a palindrome (7797557977).

The spelling of 1142505566 in words is "one billion, one hundred forty-two million, five hundred five thousand, five hundred sixty-six".