1143142104 has 32 divisors (see below), whose sum is σ = 3077691120. Its totient is φ = 351735936.

The previous prime is 1143142073. The next prime is 1143142109. The reversal of 1143142104 is 4012413411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143142109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831647 + ... + 1832270.

Almost surely, 2^1143142104 is an apocalyptic number.

It is an amenable number.

1143142104 is an abundant number, since it is smaller than the sum of its proper divisors (1934549016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143142104 is a wasteful number, since it uses less digits than its factorization.

1143142104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663939 (or 3663935 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1143142104 is about 33810.3845585938. The cubic root of 1143142104 is about 1045.6028065896.

Adding to 1143142104 its reverse (4012413411), we get a palindrome (5155555515).

It can be divided in two parts, 11431 and 42104, that added together give a palindrome (53535).

The spelling of 1143142104 in words is "one billion, one hundred forty-three million, one hundred forty-two thousand, one hundred four".