1143000002 has 4 divisors (see below), whose sum is σ = 1714500006. Its totient is φ = 571500000.

The previous prime is 1142999999. The next prime is 1143000007. The reversal of 1143000002 is 2000003411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 679071481 + 463928521 = 26059^2 + 21539^2 .

It is not an unprimeable number, because it can be changed into a prime (1143000007) by changing a digit.

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 as a sum of consecutive naturals, namely, 285749999 + ... + 285750002.

Almost surely, 2^1143000002 is an apocalyptic number.

1143000002 is a deficient number, since it is larger than the sum of its proper divisors (571500004).

1143000002 is an equidigital number, since it uses as much as digits as its factorization.

1143000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571500003.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1143000002 is about 33808.2830383325. The cubic root of 1143000002 is about 1045.5594791075.

Adding to 1143000002 its reverse (2000003411), we get a palindrome (3143003413).

The spelling of 1143000002 in words is "one billion, one hundred forty-three million, two", and thus it is an aban number.