1142289712 has 20 divisors (see below), whose sum is σ = 2214768960. Its totient is φ = 570736448.

The previous prime is 1142289683. The next prime is 1142289713. The reversal of 1142289712 is 2179822411.

It is a super-2 number, since 2×1142289712² = 2609651572282085888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142289713) 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 3 ways as a sum of consecutive naturals, for example, 1783 + ... + 47830.

It is an arithmetic number, because the mean of its divisors is an integer number (110738448).

Almost surely, 2^1142289712 is an apocalyptic number.

It is an amenable number.

1142289712 is a deficient number, since it is larger than the sum of its proper divisors (1072479248).

1142289712 is a wasteful number, since it uses less digits than its factorization.

1142289712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51060 (or 51054 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 1142289712 is about 33797.7767316136. The cubic root of 1142289712 is about 1045.3428549230.

The spelling of 1142289712 in words is "one billion, one hundred forty-two million, two hundred eighty-nine thousand, seven hundred twelve".