1142864012 has 12 divisors (see below), whose sum is σ = 2048793096. Its totient is φ = 557494560.

The previous prime is 1142863979. The next prime is 1142864017. The reversal of 1142864012 is 2104682411.

It is a super-2 number, since 2×1142864012² = 2612276299849472288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142864017) 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, 3484178 + ... + 3484505.

It is an arithmetic number, because the mean of its divisors is an integer number (170732758).

Almost surely, 2^1142864012 is an apocalyptic number.

It is an amenable number.

1142864012 is a deficient number, since it is larger than the sum of its proper divisors (905929084).

1142864012 is a wasteful number, since it uses less digits than its factorization.

1142864012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6968728 (or 6968726 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1142864012 is about 33806.2717849810. The cubic root of 1142864012 is about 1045.5180118364.

The spelling of 1142864012 in words is "one billion, one hundred forty-two million, eight hundred sixty-four thousand, twelve".