1143002138 has 8 divisors (see below), whose sum is σ = 1720088832. Its totient is φ = 569639196.

The previous prime is 1143002137. The next prime is 1143002183. The reversal of 1143002138 is 8312003411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1143002137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930170 + ... + 931397.

It is an arithmetic number, because the mean of its divisors is an integer number (215011104).

Almost surely, 2^1143002138 is an apocalyptic number.

1143002138 is a deficient number, since it is larger than the sum of its proper divisors (577086694).

1143002138 is a wasteful number, since it uses less digits than its factorization.

1143002138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861876.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1143002138 is about 33808.3146282094. The cubic root of 1143002138 is about 1045.5601304092.

Adding to 1143002138 its reverse (8312003411), we get a palindrome (9455005549).

The spelling of 1143002138 in words is "one billion, one hundred forty-three million, two thousand, one hundred thirty-eight".