1142230505 has 32 divisors (see below), whose sum is σ = 1557360000. Its totient is φ = 797271552.

The previous prime is 1142230499. The next prime is 1142230517. The reversal of 1142230505 is 5050322411.

It is a cyclic number.

It is not a de Polignac number, because 1142230505 - 2⁸ = 1142230249 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 761246 + ... + 762744.

It is an arithmetic number, because the mean of its divisors is an integer number (48667500).

Almost surely, 2^1142230505 is an apocalyptic number.

It is an amenable number.

1142230505 is a deficient number, since it is larger than the sum of its proper divisors (415129495).

1142230505 is a wasteful number, since it uses less digits than its factorization.

1142230505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1142230505 is about 33796.9008194538. The cubic root of 1142230505 is about 1045.3247939230.

Adding to 1142230505 its reverse (5050322411), we get a palindrome (6192552916).

The spelling of 1142230505 in words is "one billion, one hundred forty-two million, two hundred thirty thousand, five hundred five".