1143638132 has 24 divisors (see below), whose sum is σ = 2463221376. Its totient is φ = 452428128.

The previous prime is 1143638129. The next prime is 1143638141. The reversal of 1143638132 is 2318363411.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1570568 + ... + 1571295.

It is an arithmetic number, because the mean of its divisors is an integer number (102634224).

Almost surely, 2^1143638132 is an apocalyptic number.

It is an amenable number.

1143638132 is an abundant number, since it is smaller than the sum of its proper divisors (1319583244).

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

1143638132 is a wasteful number, since it uses less digits than its factorization.

1143638132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141887 (or 3141885 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 1143638132 is about 33817.7192016256. The cubic root of 1143638132 is about 1045.7540194232.

The spelling of 1143638132 in words is "one billion, one hundred forty-three million, six hundred thirty-eight thousand, one hundred thirty-two".