1140143212 has 24 divisors (see below), whose sum is σ = 2242156896. Its totient is φ = 503340288.

The previous prime is 1140143201. The next prime is 1140143243. The reversal of 1140143212 is 2123410411.

It is a self number, because there is not a number n which added to its sum of digits gives 1140143212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475453 + ... + 477844.

It is an arithmetic number, because the mean of its divisors is an integer number (93423204).

Almost surely, 2^1140143212 is an apocalyptic number.

It is an amenable number.

1140143212 is a deficient number, since it is larger than the sum of its proper divisors (1102013684).

1140143212 is a wasteful number, since it uses less digits than its factorization.

1140143212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953337 (or 953335 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1140143212 is about 33766.0067523538. The cubic root of 1140143212 is about 1044.6876693024.

Adding to 1140143212 its reverse (2123410411), we get a palindrome (3263553623).

The spelling of 1140143212 in words is "one billion, one hundred forty million, one hundred forty-three thousand, two hundred twelve".